Quick view Details Milwaukee | sku: MIPH600BX Milwaukee PH600 pH Meter MSRP: Our Price: Sale Price: $34.95 Out of Stock Compare Quick view Details Bluelab | sku: BLU2210 Bluelab pH pen MSRP: Our Price: Sale Price: $116.00 Add to Cart Compare Quick view Details Bluelab | sku: BLU24102 Bluelab pH Probe Only MSRP: Our Price: Sale Price: $84.00 Add to Cart Compare Quick view Details Hanna | sku: HI98118 Hanna GroLine pH Tester MSRP: Our Price: Sale Price: $85.00 Add to Cart Compare Quick view Details Hanna | sku: HI98115 Hanna GroLine PH Checker Tester MSRP: Our Price: Sale Price: $60.00 Add to Cart Compare Quick view Details Bluelab | sku: BLU8004 Bluelab pH Controller MSRP: Our Price: Sale Price: $699.00 Out of Stock Compare Quick view Details Hanna | sku: HI98131 Hanna GroLine pH/EC/TDS Combo Pen MSRP: Our Price: Sale Price: $225.00 Add to Cart Compare Quick view Details Bluelab | sku: 16625 Bluelab Leap pH Probe (Probe Only) MSRP: Our Price: Sale Price: $126.00 Out of Stock Compare Quick view Details Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Details Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Quick view Milwaukee | sku: MIPH600BX Milwaukee PH600 pH Meter Milwaukee PH600 pH Meter Milwaukee's most affordable pH meter. The pH 600 is a full range pH meter with a range from 0.0 - 14.0 ph. Milwaukee's economical testers are easy-to-use and low cost instruments to measure quick and reliable pH values... MSRP: Our Price: Sale Price: $34.95 Out of Stock Compare Quick view Bluelab | sku: BLU2210 Bluelab pH pen The Bluelab pH Pen A handy option for hobby and small scale hydroponic growers. Maintaining proper pH levels is key in raising healthy, fruitful plants, and this pen accurately measures both the pH and temperature in your hydroponic system. It also... MSRP: Our Price: Sale Price: $116.00 Add to Cart Compare Quick view Bluelab | sku: BLU24102 Bluelab pH Probe Only Bluelab pH Probe Only Easy to clean because of its bullet shaped glass bulb. Fully waterproof and less fragile than all-glass electrodes because of its tough polypropylene barrel. Gel filled (non-refillable) making it maintenance free and a double... MSRP: Our Price: Sale Price: $84.00 Add to Cart Compare Quick view Hanna | sku: HI98118 Hanna GroLine pH Tester The Hanna GroLine HI98118 pH/temperature tester is a pocket meter for measuring the pH of a hydroponic nutrient solution. This modern looking meter is only 0.7" thick and extremely ergonomic, fitting comfortably in your hand. The HI98118 has... MSRP: Our Price: Sale Price: $85.00 Add to Cart Compare Quick view Hanna | sku: HI98115 Hanna GroLine PH Checker Tester The Hanna GroLine PH Checker Tester HI98115 features advanced features for the measurement of pH in hydroponic nutrient solutions. The HI98115 is a very simple meter to operate with all functions including turning on/off and calibration... MSRP: Our Price: Sale Price: $60.00 Add to Cart Compare Quick view Bluelab | sku: BLU8004 Bluelab pH Controller Hands-free monitoring and dosing of solution pH levels. Features:• Automatic control and monitoring of system pH with reservoirs up to 200 US gal / 760 L• Plant-safe green back lit LCD with adjustable brightness• Large, easy to read... MSRP: Our Price: Sale Price: $699.00 Out of Stock Compare Quick view Hanna | sku: HI98131 Hanna GroLine pH/EC/TDS Combo Pen Hanna GroLine pH/EC/TDS Combo Pen Designed to bring simplicity to nutrient testing, the HI9814 Portable GroLine Meter is designed specifically for Hydroponic growers. The specialized electrode combines 3 sensors in a single rugged probe... MSRP: Our Price: Sale Price: $225.00 Add to Cart Compare Quick view Bluelab | sku: 16625 Bluelab Leap pH Probe (Probe Only) Bluelab Leap pH Probe (Probe Only) MSRP: Our Price: Sale Price: $126.00 Out of Stock Compare Quick view Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Compare Selected × OK
Quick view Details Bluelab | sku: BLU2210 Bluelab pH pen MSRP: Our Price: Sale Price: $116.00 Add to Cart Compare Quick view Details Bluelab | sku: BLU24102 Bluelab pH Probe Only MSRP: Our Price: Sale Price: $84.00 Add to Cart Compare Quick view Details Hanna | sku: HI98118 Hanna GroLine pH Tester MSRP: Our Price: Sale Price: $85.00 Add to Cart Compare Quick view Details Hanna | sku: HI98115 Hanna GroLine PH Checker Tester MSRP: Our Price: Sale Price: $60.00 Add to Cart Compare Quick view Details Bluelab | sku: BLU8004 Bluelab pH Controller MSRP: Our Price: Sale Price: $699.00 Out of Stock Compare Quick view Details Hanna | sku: HI98131 Hanna GroLine pH/EC/TDS Combo Pen MSRP: Our Price: Sale Price: $225.00 Add to Cart Compare Quick view Details Bluelab | sku: 16625 Bluelab Leap pH Probe (Probe Only) MSRP: Our Price: Sale Price: $126.00 Out of Stock Compare Quick view Details Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Details Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Quick view Milwaukee | sku: MIPH600BX Milwaukee PH600 pH Meter Milwaukee PH600 pH Meter Milwaukee's most affordable pH meter. The pH 600 is a full range pH meter with a range from 0.0 - 14.0 ph. Milwaukee's economical testers are easy-to-use and low cost instruments to measure quick and reliable pH values... MSRP: Our Price: Sale Price: $34.95 Out of Stock Compare Quick view Bluelab | sku: BLU2210 Bluelab pH pen The Bluelab pH Pen A handy option for hobby and small scale hydroponic growers. Maintaining proper pH levels is key in raising healthy, fruitful plants, and this pen accurately measures both the pH and temperature in your hydroponic system. It also... MSRP: Our Price: Sale Price: $116.00 Add to Cart Compare Quick view Bluelab | sku: BLU24102 Bluelab pH Probe Only Bluelab pH Probe Only Easy to clean because of its bullet shaped glass bulb. Fully waterproof and less fragile than all-glass electrodes because of its tough polypropylene barrel. Gel filled (non-refillable) making it maintenance free and a double... MSRP: Our Price: Sale Price: $84.00 Add to Cart Compare Quick view Hanna | sku: HI98118 Hanna GroLine pH Tester The Hanna GroLine HI98118 pH/temperature tester is a pocket meter for measuring the pH of a hydroponic nutrient solution. This modern looking meter is only 0.7" thick and extremely ergonomic, fitting comfortably in your hand. The HI98118 has... MSRP: Our Price: Sale Price: $85.00 Add to Cart Compare Quick view Hanna | sku: HI98115 Hanna GroLine PH Checker Tester The Hanna GroLine PH Checker Tester HI98115 features advanced features for the measurement of pH in hydroponic nutrient solutions. The HI98115 is a very simple meter to operate with all functions including turning on/off and calibration... MSRP: Our Price: Sale Price: $60.00 Add to Cart Compare Quick view Bluelab | sku: BLU8004 Bluelab pH Controller Hands-free monitoring and dosing of solution pH levels. Features:• Automatic control and monitoring of system pH with reservoirs up to 200 US gal / 760 L• Plant-safe green back lit LCD with adjustable brightness• Large, easy to read... MSRP: Our Price: Sale Price: $699.00 Out of Stock Compare Quick view Hanna | sku: HI98131 Hanna GroLine pH/EC/TDS Combo Pen Hanna GroLine pH/EC/TDS Combo Pen Designed to bring simplicity to nutrient testing, the HI9814 Portable GroLine Meter is designed specifically for Hydroponic growers. The specialized electrode combines 3 sensors in a single rugged probe... MSRP: Our Price: Sale Price: $225.00 Add to Cart Compare Quick view Bluelab | sku: 16625 Bluelab Leap pH Probe (Probe Only) Bluelab Leap pH Probe (Probe Only) MSRP: Our Price: Sale Price: $126.00 Out of Stock Compare Quick view Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Compare Selected × OK
Quick view Details Bluelab | sku: BLU24102 Bluelab pH Probe Only MSRP: Our Price: Sale Price: $84.00 Add to Cart Compare Quick view Details Hanna | sku: HI98118 Hanna GroLine pH Tester MSRP: Our Price: Sale Price: $85.00 Add to Cart Compare Quick view Details Hanna | sku: HI98115 Hanna GroLine PH Checker Tester MSRP: Our Price: Sale Price: $60.00 Add to Cart Compare Quick view Details Bluelab | sku: BLU8004 Bluelab pH Controller MSRP: Our Price: Sale Price: $699.00 Out of Stock Compare Quick view Details Hanna | sku: HI98131 Hanna GroLine pH/EC/TDS Combo Pen MSRP: Our Price: Sale Price: $225.00 Add to Cart Compare Quick view Details Bluelab | sku: 16625 Bluelab Leap pH Probe (Probe Only) MSRP: Our Price: Sale Price: $126.00 Out of Stock Compare Quick view Details Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Details Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Quick view Milwaukee | sku: MIPH600BX Milwaukee PH600 pH Meter Milwaukee PH600 pH Meter Milwaukee's most affordable pH meter. The pH 600 is a full range pH meter with a range from 0.0 - 14.0 ph. Milwaukee's economical testers are easy-to-use and low cost instruments to measure quick and reliable pH values... MSRP: Our Price: Sale Price: $34.95 Out of Stock Compare Quick view Bluelab | sku: BLU2210 Bluelab pH pen The Bluelab pH Pen A handy option for hobby and small scale hydroponic growers. Maintaining proper pH levels is key in raising healthy, fruitful plants, and this pen accurately measures both the pH and temperature in your hydroponic system. It also... MSRP: Our Price: Sale Price: $116.00 Add to Cart Compare Quick view Bluelab | sku: BLU24102 Bluelab pH Probe Only Bluelab pH Probe Only Easy to clean because of its bullet shaped glass bulb. Fully waterproof and less fragile than all-glass electrodes because of its tough polypropylene barrel. Gel filled (non-refillable) making it maintenance free and a double... MSRP: Our Price: Sale Price: $84.00 Add to Cart Compare Quick view Hanna | sku: HI98118 Hanna GroLine pH Tester The Hanna GroLine HI98118 pH/temperature tester is a pocket meter for measuring the pH of a hydroponic nutrient solution. This modern looking meter is only 0.7" thick and extremely ergonomic, fitting comfortably in your hand. The HI98118 has... MSRP: Our Price: Sale Price: $85.00 Add to Cart Compare Quick view Hanna | sku: HI98115 Hanna GroLine PH Checker Tester The Hanna GroLine PH Checker Tester HI98115 features advanced features for the measurement of pH in hydroponic nutrient solutions. The HI98115 is a very simple meter to operate with all functions including turning on/off and calibration... MSRP: Our Price: Sale Price: $60.00 Add to Cart Compare Quick view Bluelab | sku: BLU8004 Bluelab pH Controller Hands-free monitoring and dosing of solution pH levels. Features:• Automatic control and monitoring of system pH with reservoirs up to 200 US gal / 760 L• Plant-safe green back lit LCD with adjustable brightness• Large, easy to read... MSRP: Our Price: Sale Price: $699.00 Out of Stock Compare Quick view Hanna | sku: HI98131 Hanna GroLine pH/EC/TDS Combo Pen Hanna GroLine pH/EC/TDS Combo Pen Designed to bring simplicity to nutrient testing, the HI9814 Portable GroLine Meter is designed specifically for Hydroponic growers. The specialized electrode combines 3 sensors in a single rugged probe... MSRP: Our Price: Sale Price: $225.00 Add to Cart Compare Quick view Bluelab | sku: 16625 Bluelab Leap pH Probe (Probe Only) Bluelab Leap pH Probe (Probe Only) MSRP: Our Price: Sale Price: $126.00 Out of Stock Compare Quick view Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Compare Selected × OK
Quick view Details Hanna | sku: HI98118 Hanna GroLine pH Tester MSRP: Our Price: Sale Price: $85.00 Add to Cart Compare Quick view Details Hanna | sku: HI98115 Hanna GroLine PH Checker Tester MSRP: Our Price: Sale Price: $60.00 Add to Cart Compare Quick view Details Bluelab | sku: BLU8004 Bluelab pH Controller MSRP: Our Price: Sale Price: $699.00 Out of Stock Compare Quick view Details Hanna | sku: HI98131 Hanna GroLine pH/EC/TDS Combo Pen MSRP: Our Price: Sale Price: $225.00 Add to Cart Compare Quick view Details Bluelab | sku: 16625 Bluelab Leap pH Probe (Probe Only) MSRP: Our Price: Sale Price: $126.00 Out of Stock Compare Quick view Details Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Details Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Quick view Milwaukee | sku: MIPH600BX Milwaukee PH600 pH Meter Milwaukee PH600 pH Meter Milwaukee's most affordable pH meter. The pH 600 is a full range pH meter with a range from 0.0 - 14.0 ph. Milwaukee's economical testers are easy-to-use and low cost instruments to measure quick and reliable pH values... MSRP: Our Price: Sale Price: $34.95 Out of Stock Compare Quick view Bluelab | sku: BLU2210 Bluelab pH pen The Bluelab pH Pen A handy option for hobby and small scale hydroponic growers. Maintaining proper pH levels is key in raising healthy, fruitful plants, and this pen accurately measures both the pH and temperature in your hydroponic system. It also... MSRP: Our Price: Sale Price: $116.00 Add to Cart Compare Quick view Bluelab | sku: BLU24102 Bluelab pH Probe Only Bluelab pH Probe Only Easy to clean because of its bullet shaped glass bulb. Fully waterproof and less fragile than all-glass electrodes because of its tough polypropylene barrel. Gel filled (non-refillable) making it maintenance free and a double... MSRP: Our Price: Sale Price: $84.00 Add to Cart Compare Quick view Hanna | sku: HI98118 Hanna GroLine pH Tester The Hanna GroLine HI98118 pH/temperature tester is a pocket meter for measuring the pH of a hydroponic nutrient solution. This modern looking meter is only 0.7" thick and extremely ergonomic, fitting comfortably in your hand. The HI98118 has... MSRP: Our Price: Sale Price: $85.00 Add to Cart Compare Quick view Hanna | sku: HI98115 Hanna GroLine PH Checker Tester The Hanna GroLine PH Checker Tester HI98115 features advanced features for the measurement of pH in hydroponic nutrient solutions. The HI98115 is a very simple meter to operate with all functions including turning on/off and calibration... MSRP: Our Price: Sale Price: $60.00 Add to Cart Compare Quick view Bluelab | sku: BLU8004 Bluelab pH Controller Hands-free monitoring and dosing of solution pH levels. Features:• Automatic control and monitoring of system pH with reservoirs up to 200 US gal / 760 L• Plant-safe green back lit LCD with adjustable brightness• Large, easy to read... MSRP: Our Price: Sale Price: $699.00 Out of Stock Compare Quick view Hanna | sku: HI98131 Hanna GroLine pH/EC/TDS Combo Pen Hanna GroLine pH/EC/TDS Combo Pen Designed to bring simplicity to nutrient testing, the HI9814 Portable GroLine Meter is designed specifically for Hydroponic growers. The specialized electrode combines 3 sensors in a single rugged probe... MSRP: Our Price: Sale Price: $225.00 Add to Cart Compare Quick view Bluelab | sku: 16625 Bluelab Leap pH Probe (Probe Only) Bluelab Leap pH Probe (Probe Only) MSRP: Our Price: Sale Price: $126.00 Out of Stock Compare Quick view Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Compare Selected × OK
Quick view Details Hanna | sku: HI98115 Hanna GroLine PH Checker Tester MSRP: Our Price: Sale Price: $60.00 Add to Cart Compare Quick view Details Bluelab | sku: BLU8004 Bluelab pH Controller MSRP: Our Price: Sale Price: $699.00 Out of Stock Compare Quick view Details Hanna | sku: HI98131 Hanna GroLine pH/EC/TDS Combo Pen MSRP: Our Price: Sale Price: $225.00 Add to Cart Compare Quick view Details Bluelab | sku: 16625 Bluelab Leap pH Probe (Probe Only) MSRP: Our Price: Sale Price: $126.00 Out of Stock Compare Quick view Details Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Details Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Quick view Milwaukee | sku: MIPH600BX Milwaukee PH600 pH Meter Milwaukee PH600 pH Meter Milwaukee's most affordable pH meter. The pH 600 is a full range pH meter with a range from 0.0 - 14.0 ph. Milwaukee's economical testers are easy-to-use and low cost instruments to measure quick and reliable pH values... MSRP: Our Price: Sale Price: $34.95 Out of Stock Compare Quick view Bluelab | sku: BLU2210 Bluelab pH pen The Bluelab pH Pen A handy option for hobby and small scale hydroponic growers. Maintaining proper pH levels is key in raising healthy, fruitful plants, and this pen accurately measures both the pH and temperature in your hydroponic system. It also... MSRP: Our Price: Sale Price: $116.00 Add to Cart Compare Quick view Bluelab | sku: BLU24102 Bluelab pH Probe Only Bluelab pH Probe Only Easy to clean because of its bullet shaped glass bulb. Fully waterproof and less fragile than all-glass electrodes because of its tough polypropylene barrel. Gel filled (non-refillable) making it maintenance free and a double... MSRP: Our Price: Sale Price: $84.00 Add to Cart Compare Quick view Hanna | sku: HI98118 Hanna GroLine pH Tester The Hanna GroLine HI98118 pH/temperature tester is a pocket meter for measuring the pH of a hydroponic nutrient solution. This modern looking meter is only 0.7" thick and extremely ergonomic, fitting comfortably in your hand. The HI98118 has... MSRP: Our Price: Sale Price: $85.00 Add to Cart Compare Quick view Hanna | sku: HI98115 Hanna GroLine PH Checker Tester The Hanna GroLine PH Checker Tester HI98115 features advanced features for the measurement of pH in hydroponic nutrient solutions. The HI98115 is a very simple meter to operate with all functions including turning on/off and calibration... MSRP: Our Price: Sale Price: $60.00 Add to Cart Compare Quick view Bluelab | sku: BLU8004 Bluelab pH Controller Hands-free monitoring and dosing of solution pH levels. Features:• Automatic control and monitoring of system pH with reservoirs up to 200 US gal / 760 L• Plant-safe green back lit LCD with adjustable brightness• Large, easy to read... MSRP: Our Price: Sale Price: $699.00 Out of Stock Compare Quick view Hanna | sku: HI98131 Hanna GroLine pH/EC/TDS Combo Pen Hanna GroLine pH/EC/TDS Combo Pen Designed to bring simplicity to nutrient testing, the HI9814 Portable GroLine Meter is designed specifically for Hydroponic growers. The specialized electrode combines 3 sensors in a single rugged probe... MSRP: Our Price: Sale Price: $225.00 Add to Cart Compare Quick view Bluelab | sku: 16625 Bluelab Leap pH Probe (Probe Only) Bluelab Leap pH Probe (Probe Only) MSRP: Our Price: Sale Price: $126.00 Out of Stock Compare Quick view Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Compare Selected × OK
Quick view Details Bluelab | sku: BLU8004 Bluelab pH Controller MSRP: Our Price: Sale Price: $699.00 Out of Stock Compare Quick view Details Hanna | sku: HI98131 Hanna GroLine pH/EC/TDS Combo Pen MSRP: Our Price: Sale Price: $225.00 Add to Cart Compare Quick view Details Bluelab | sku: 16625 Bluelab Leap pH Probe (Probe Only) MSRP: Our Price: Sale Price: $126.00 Out of Stock Compare Quick view Details Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Details Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Quick view Milwaukee | sku: MIPH600BX Milwaukee PH600 pH Meter Milwaukee PH600 pH Meter Milwaukee's most affordable pH meter. The pH 600 is a full range pH meter with a range from 0.0 - 14.0 ph. Milwaukee's economical testers are easy-to-use and low cost instruments to measure quick and reliable pH values... MSRP: Our Price: Sale Price: $34.95 Out of Stock Compare Quick view Bluelab | sku: BLU2210 Bluelab pH pen The Bluelab pH Pen A handy option for hobby and small scale hydroponic growers. Maintaining proper pH levels is key in raising healthy, fruitful plants, and this pen accurately measures both the pH and temperature in your hydroponic system. It also... MSRP: Our Price: Sale Price: $116.00 Add to Cart Compare Quick view Bluelab | sku: BLU24102 Bluelab pH Probe Only Bluelab pH Probe Only Easy to clean because of its bullet shaped glass bulb. Fully waterproof and less fragile than all-glass electrodes because of its tough polypropylene barrel. Gel filled (non-refillable) making it maintenance free and a double... MSRP: Our Price: Sale Price: $84.00 Add to Cart Compare Quick view Hanna | sku: HI98118 Hanna GroLine pH Tester The Hanna GroLine HI98118 pH/temperature tester is a pocket meter for measuring the pH of a hydroponic nutrient solution. This modern looking meter is only 0.7" thick and extremely ergonomic, fitting comfortably in your hand. The HI98118 has... MSRP: Our Price: Sale Price: $85.00 Add to Cart Compare Quick view Hanna | sku: HI98115 Hanna GroLine PH Checker Tester The Hanna GroLine PH Checker Tester HI98115 features advanced features for the measurement of pH in hydroponic nutrient solutions. The HI98115 is a very simple meter to operate with all functions including turning on/off and calibration... MSRP: Our Price: Sale Price: $60.00 Add to Cart Compare Quick view Bluelab | sku: BLU8004 Bluelab pH Controller Hands-free monitoring and dosing of solution pH levels. Features:• Automatic control and monitoring of system pH with reservoirs up to 200 US gal / 760 L• Plant-safe green back lit LCD with adjustable brightness• Large, easy to read... MSRP: Our Price: Sale Price: $699.00 Out of Stock Compare Quick view Hanna | sku: HI98131 Hanna GroLine pH/EC/TDS Combo Pen Hanna GroLine pH/EC/TDS Combo Pen Designed to bring simplicity to nutrient testing, the HI9814 Portable GroLine Meter is designed specifically for Hydroponic growers. The specialized electrode combines 3 sensors in a single rugged probe... MSRP: Our Price: Sale Price: $225.00 Add to Cart Compare Quick view Bluelab | sku: 16625 Bluelab Leap pH Probe (Probe Only) Bluelab Leap pH Probe (Probe Only) MSRP: Our Price: Sale Price: $126.00 Out of Stock Compare Quick view Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Compare Selected × OK
Quick view Details Hanna | sku: HI98131 Hanna GroLine pH/EC/TDS Combo Pen MSRP: Our Price: Sale Price: $225.00 Add to Cart Compare Quick view Details Bluelab | sku: 16625 Bluelab Leap pH Probe (Probe Only) MSRP: Our Price: Sale Price: $126.00 Out of Stock Compare Quick view Details Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Details Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Quick view Milwaukee | sku: MIPH600BX Milwaukee PH600 pH Meter Milwaukee PH600 pH Meter Milwaukee's most affordable pH meter. The pH 600 is a full range pH meter with a range from 0.0 - 14.0 ph. Milwaukee's economical testers are easy-to-use and low cost instruments to measure quick and reliable pH values... MSRP: Our Price: Sale Price: $34.95 Out of Stock Compare Quick view Bluelab | sku: BLU2210 Bluelab pH pen The Bluelab pH Pen A handy option for hobby and small scale hydroponic growers. Maintaining proper pH levels is key in raising healthy, fruitful plants, and this pen accurately measures both the pH and temperature in your hydroponic system. It also... MSRP: Our Price: Sale Price: $116.00 Add to Cart Compare Quick view Bluelab | sku: BLU24102 Bluelab pH Probe Only Bluelab pH Probe Only Easy to clean because of its bullet shaped glass bulb. Fully waterproof and less fragile than all-glass electrodes because of its tough polypropylene barrel. Gel filled (non-refillable) making it maintenance free and a double... MSRP: Our Price: Sale Price: $84.00 Add to Cart Compare Quick view Hanna | sku: HI98118 Hanna GroLine pH Tester The Hanna GroLine HI98118 pH/temperature tester is a pocket meter for measuring the pH of a hydroponic nutrient solution. This modern looking meter is only 0.7" thick and extremely ergonomic, fitting comfortably in your hand. The HI98118 has... MSRP: Our Price: Sale Price: $85.00 Add to Cart Compare Quick view Hanna | sku: HI98115 Hanna GroLine PH Checker Tester The Hanna GroLine PH Checker Tester HI98115 features advanced features for the measurement of pH in hydroponic nutrient solutions. The HI98115 is a very simple meter to operate with all functions including turning on/off and calibration... MSRP: Our Price: Sale Price: $60.00 Add to Cart Compare Quick view Bluelab | sku: BLU8004 Bluelab pH Controller Hands-free monitoring and dosing of solution pH levels. Features:• Automatic control and monitoring of system pH with reservoirs up to 200 US gal / 760 L• Plant-safe green back lit LCD with adjustable brightness• Large, easy to read... MSRP: Our Price: Sale Price: $699.00 Out of Stock Compare Quick view Hanna | sku: HI98131 Hanna GroLine pH/EC/TDS Combo Pen Hanna GroLine pH/EC/TDS Combo Pen Designed to bring simplicity to nutrient testing, the HI9814 Portable GroLine Meter is designed specifically for Hydroponic growers. The specialized electrode combines 3 sensors in a single rugged probe... MSRP: Our Price: Sale Price: $225.00 Add to Cart Compare Quick view Bluelab | sku: 16625 Bluelab Leap pH Probe (Probe Only) Bluelab Leap pH Probe (Probe Only) MSRP: Our Price: Sale Price: $126.00 Out of Stock Compare Quick view Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Compare Selected × OK
Quick view Details Bluelab | sku: 16625 Bluelab Leap pH Probe (Probe Only) MSRP: Our Price: Sale Price: $126.00 Out of Stock Compare Quick view Details Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Details Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Quick view Milwaukee | sku: MIPH600BX Milwaukee PH600 pH Meter Milwaukee PH600 pH Meter Milwaukee's most affordable pH meter. The pH 600 is a full range pH meter with a range from 0.0 - 14.0 ph. Milwaukee's economical testers are easy-to-use and low cost instruments to measure quick and reliable pH values... MSRP: Our Price: Sale Price: $34.95 Out of Stock Compare Quick view Bluelab | sku: BLU2210 Bluelab pH pen The Bluelab pH Pen A handy option for hobby and small scale hydroponic growers. Maintaining proper pH levels is key in raising healthy, fruitful plants, and this pen accurately measures both the pH and temperature in your hydroponic system. It also... MSRP: Our Price: Sale Price: $116.00 Add to Cart Compare Quick view Bluelab | sku: BLU24102 Bluelab pH Probe Only Bluelab pH Probe Only Easy to clean because of its bullet shaped glass bulb. Fully waterproof and less fragile than all-glass electrodes because of its tough polypropylene barrel. Gel filled (non-refillable) making it maintenance free and a double... MSRP: Our Price: Sale Price: $84.00 Add to Cart Compare Quick view Hanna | sku: HI98118 Hanna GroLine pH Tester The Hanna GroLine HI98118 pH/temperature tester is a pocket meter for measuring the pH of a hydroponic nutrient solution. This modern looking meter is only 0.7" thick and extremely ergonomic, fitting comfortably in your hand. The HI98118 has... MSRP: Our Price: Sale Price: $85.00 Add to Cart Compare Quick view Hanna | sku: HI98115 Hanna GroLine PH Checker Tester The Hanna GroLine PH Checker Tester HI98115 features advanced features for the measurement of pH in hydroponic nutrient solutions. The HI98115 is a very simple meter to operate with all functions including turning on/off and calibration... MSRP: Our Price: Sale Price: $60.00 Add to Cart Compare Quick view Bluelab | sku: BLU8004 Bluelab pH Controller Hands-free monitoring and dosing of solution pH levels. Features:• Automatic control and monitoring of system pH with reservoirs up to 200 US gal / 760 L• Plant-safe green back lit LCD with adjustable brightness• Large, easy to read... MSRP: Our Price: Sale Price: $699.00 Out of Stock Compare Quick view Hanna | sku: HI98131 Hanna GroLine pH/EC/TDS Combo Pen Hanna GroLine pH/EC/TDS Combo Pen Designed to bring simplicity to nutrient testing, the HI9814 Portable GroLine Meter is designed specifically for Hydroponic growers. The specialized electrode combines 3 sensors in a single rugged probe... MSRP: Our Price: Sale Price: $225.00 Add to Cart Compare Quick view Bluelab | sku: 16625 Bluelab Leap pH Probe (Probe Only) Bluelab Leap pH Probe (Probe Only) MSRP: Our Price: Sale Price: $126.00 Out of Stock Compare Quick view Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Compare Selected × OK
Quick view Details Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Details Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Quick view Milwaukee | sku: MIPH600BX Milwaukee PH600 pH Meter Milwaukee PH600 pH Meter Milwaukee's most affordable pH meter. The pH 600 is a full range pH meter with a range from 0.0 - 14.0 ph. Milwaukee's economical testers are easy-to-use and low cost instruments to measure quick and reliable pH values... MSRP: Our Price: Sale Price: $34.95 Out of Stock Compare Quick view Bluelab | sku: BLU2210 Bluelab pH pen The Bluelab pH Pen A handy option for hobby and small scale hydroponic growers. Maintaining proper pH levels is key in raising healthy, fruitful plants, and this pen accurately measures both the pH and temperature in your hydroponic system. It also... MSRP: Our Price: Sale Price: $116.00 Add to Cart Compare Quick view Bluelab | sku: BLU24102 Bluelab pH Probe Only Bluelab pH Probe Only Easy to clean because of its bullet shaped glass bulb. Fully waterproof and less fragile than all-glass electrodes because of its tough polypropylene barrel. Gel filled (non-refillable) making it maintenance free and a double... MSRP: Our Price: Sale Price: $84.00 Add to Cart Compare Quick view Hanna | sku: HI98118 Hanna GroLine pH Tester The Hanna GroLine HI98118 pH/temperature tester is a pocket meter for measuring the pH of a hydroponic nutrient solution. This modern looking meter is only 0.7" thick and extremely ergonomic, fitting comfortably in your hand. The HI98118 has... MSRP: Our Price: Sale Price: $85.00 Add to Cart Compare Quick view Hanna | sku: HI98115 Hanna GroLine PH Checker Tester The Hanna GroLine PH Checker Tester HI98115 features advanced features for the measurement of pH in hydroponic nutrient solutions. The HI98115 is a very simple meter to operate with all functions including turning on/off and calibration... MSRP: Our Price: Sale Price: $60.00 Add to Cart Compare Quick view Bluelab | sku: BLU8004 Bluelab pH Controller Hands-free monitoring and dosing of solution pH levels. Features:• Automatic control and monitoring of system pH with reservoirs up to 200 US gal / 760 L• Plant-safe green back lit LCD with adjustable brightness• Large, easy to read... MSRP: Our Price: Sale Price: $699.00 Out of Stock Compare Quick view Hanna | sku: HI98131 Hanna GroLine pH/EC/TDS Combo Pen Hanna GroLine pH/EC/TDS Combo Pen Designed to bring simplicity to nutrient testing, the HI9814 Portable GroLine Meter is designed specifically for Hydroponic growers. The specialized electrode combines 3 sensors in a single rugged probe... MSRP: Our Price: Sale Price: $225.00 Add to Cart Compare Quick view Bluelab | sku: 16625 Bluelab Leap pH Probe (Probe Only) Bluelab Leap pH Probe (Probe Only) MSRP: Our Price: Sale Price: $126.00 Out of Stock Compare Quick view Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Compare Selected × OK
Quick view Details Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Quick view Milwaukee | sku: MIPH600BX Milwaukee PH600 pH Meter Milwaukee PH600 pH Meter Milwaukee's most affordable pH meter. The pH 600 is a full range pH meter with a range from 0.0 - 14.0 ph. Milwaukee's economical testers are easy-to-use and low cost instruments to measure quick and reliable pH values... MSRP: Our Price: Sale Price: $34.95 Out of Stock Compare Quick view Bluelab | sku: BLU2210 Bluelab pH pen The Bluelab pH Pen A handy option for hobby and small scale hydroponic growers. Maintaining proper pH levels is key in raising healthy, fruitful plants, and this pen accurately measures both the pH and temperature in your hydroponic system. It also... MSRP: Our Price: Sale Price: $116.00 Add to Cart Compare Quick view Bluelab | sku: BLU24102 Bluelab pH Probe Only Bluelab pH Probe Only Easy to clean because of its bullet shaped glass bulb. Fully waterproof and less fragile than all-glass electrodes because of its tough polypropylene barrel. Gel filled (non-refillable) making it maintenance free and a double... MSRP: Our Price: Sale Price: $84.00 Add to Cart Compare Quick view Hanna | sku: HI98118 Hanna GroLine pH Tester The Hanna GroLine HI98118 pH/temperature tester is a pocket meter for measuring the pH of a hydroponic nutrient solution. This modern looking meter is only 0.7" thick and extremely ergonomic, fitting comfortably in your hand. The HI98118 has... MSRP: Our Price: Sale Price: $85.00 Add to Cart Compare Quick view Hanna | sku: HI98115 Hanna GroLine PH Checker Tester The Hanna GroLine PH Checker Tester HI98115 features advanced features for the measurement of pH in hydroponic nutrient solutions. The HI98115 is a very simple meter to operate with all functions including turning on/off and calibration... MSRP: Our Price: Sale Price: $60.00 Add to Cart Compare Quick view Bluelab | sku: BLU8004 Bluelab pH Controller Hands-free monitoring and dosing of solution pH levels. Features:• Automatic control and monitoring of system pH with reservoirs up to 200 US gal / 760 L• Plant-safe green back lit LCD with adjustable brightness• Large, easy to read... MSRP: Our Price: Sale Price: $699.00 Out of Stock Compare Quick view Hanna | sku: HI98131 Hanna GroLine pH/EC/TDS Combo Pen Hanna GroLine pH/EC/TDS Combo Pen Designed to bring simplicity to nutrient testing, the HI9814 Portable GroLine Meter is designed specifically for Hydroponic growers. The specialized electrode combines 3 sensors in a single rugged probe... MSRP: Our Price: Sale Price: $225.00 Add to Cart Compare Quick view Bluelab | sku: 16625 Bluelab Leap pH Probe (Probe Only) Bluelab Leap pH Probe (Probe Only) MSRP: Our Price: Sale Price: $126.00 Out of Stock Compare Quick view Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Compare Selected × OK
Quick view Milwaukee | sku: MIPH600BX Milwaukee PH600 pH Meter Milwaukee PH600 pH Meter Milwaukee's most affordable pH meter. The pH 600 is a full range pH meter with a range from 0.0 - 14.0 ph. Milwaukee's economical testers are easy-to-use and low cost instruments to measure quick and reliable pH values... MSRP: Our Price: Sale Price: $34.95 Out of Stock Compare Quick view Bluelab | sku: BLU2210 Bluelab pH pen The Bluelab pH Pen A handy option for hobby and small scale hydroponic growers. Maintaining proper pH levels is key in raising healthy, fruitful plants, and this pen accurately measures both the pH and temperature in your hydroponic system. It also... MSRP: Our Price: Sale Price: $116.00 Add to Cart Compare Quick view Bluelab | sku: BLU24102 Bluelab pH Probe Only Bluelab pH Probe Only Easy to clean because of its bullet shaped glass bulb. Fully waterproof and less fragile than all-glass electrodes because of its tough polypropylene barrel. Gel filled (non-refillable) making it maintenance free and a double... MSRP: Our Price: Sale Price: $84.00 Add to Cart Compare Quick view Hanna | sku: HI98118 Hanna GroLine pH Tester The Hanna GroLine HI98118 pH/temperature tester is a pocket meter for measuring the pH of a hydroponic nutrient solution. This modern looking meter is only 0.7" thick and extremely ergonomic, fitting comfortably in your hand. The HI98118 has... MSRP: Our Price: Sale Price: $85.00 Add to Cart Compare Quick view Hanna | sku: HI98115 Hanna GroLine PH Checker Tester The Hanna GroLine PH Checker Tester HI98115 features advanced features for the measurement of pH in hydroponic nutrient solutions. The HI98115 is a very simple meter to operate with all functions including turning on/off and calibration... MSRP: Our Price: Sale Price: $60.00 Add to Cart Compare Quick view Bluelab | sku: BLU8004 Bluelab pH Controller Hands-free monitoring and dosing of solution pH levels. Features:• Automatic control and monitoring of system pH with reservoirs up to 200 US gal / 760 L• Plant-safe green back lit LCD with adjustable brightness• Large, easy to read... MSRP: Our Price: Sale Price: $699.00 Out of Stock Compare Quick view Hanna | sku: HI98131 Hanna GroLine pH/EC/TDS Combo Pen Hanna GroLine pH/EC/TDS Combo Pen Designed to bring simplicity to nutrient testing, the HI9814 Portable GroLine Meter is designed specifically for Hydroponic growers. The specialized electrode combines 3 sensors in a single rugged probe... MSRP: Our Price: Sale Price: $225.00 Add to Cart Compare Quick view Bluelab | sku: 16625 Bluelab Leap pH Probe (Probe Only) Bluelab Leap pH Probe (Probe Only) MSRP: Our Price: Sale Price: $126.00 Out of Stock Compare Quick view Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Compare Selected × OK
Quick view Bluelab | sku: BLU2210 Bluelab pH pen The Bluelab pH Pen A handy option for hobby and small scale hydroponic growers. Maintaining proper pH levels is key in raising healthy, fruitful plants, and this pen accurately measures both the pH and temperature in your hydroponic system. It also... MSRP: Our Price: Sale Price: $116.00 Add to Cart Compare Quick view Bluelab | sku: BLU24102 Bluelab pH Probe Only Bluelab pH Probe Only Easy to clean because of its bullet shaped glass bulb. Fully waterproof and less fragile than all-glass electrodes because of its tough polypropylene barrel. Gel filled (non-refillable) making it maintenance free and a double... MSRP: Our Price: Sale Price: $84.00 Add to Cart Compare Quick view Hanna | sku: HI98118 Hanna GroLine pH Tester The Hanna GroLine HI98118 pH/temperature tester is a pocket meter for measuring the pH of a hydroponic nutrient solution. This modern looking meter is only 0.7" thick and extremely ergonomic, fitting comfortably in your hand. The HI98118 has... MSRP: Our Price: Sale Price: $85.00 Add to Cart Compare Quick view Hanna | sku: HI98115 Hanna GroLine PH Checker Tester The Hanna GroLine PH Checker Tester HI98115 features advanced features for the measurement of pH in hydroponic nutrient solutions. The HI98115 is a very simple meter to operate with all functions including turning on/off and calibration... MSRP: Our Price: Sale Price: $60.00 Add to Cart Compare Quick view Bluelab | sku: BLU8004 Bluelab pH Controller Hands-free monitoring and dosing of solution pH levels. Features:• Automatic control and monitoring of system pH with reservoirs up to 200 US gal / 760 L• Plant-safe green back lit LCD with adjustable brightness• Large, easy to read... MSRP: Our Price: Sale Price: $699.00 Out of Stock Compare Quick view Hanna | sku: HI98131 Hanna GroLine pH/EC/TDS Combo Pen Hanna GroLine pH/EC/TDS Combo Pen Designed to bring simplicity to nutrient testing, the HI9814 Portable GroLine Meter is designed specifically for Hydroponic growers. The specialized electrode combines 3 sensors in a single rugged probe... MSRP: Our Price: Sale Price: $225.00 Add to Cart Compare Quick view Bluelab | sku: 16625 Bluelab Leap pH Probe (Probe Only) Bluelab Leap pH Probe (Probe Only) MSRP: Our Price: Sale Price: $126.00 Out of Stock Compare Quick view Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Compare Selected × OK
Quick view Bluelab | sku: BLU24102 Bluelab pH Probe Only Bluelab pH Probe Only Easy to clean because of its bullet shaped glass bulb. Fully waterproof and less fragile than all-glass electrodes because of its tough polypropylene barrel. Gel filled (non-refillable) making it maintenance free and a double... MSRP: Our Price: Sale Price: $84.00 Add to Cart Compare Quick view Hanna | sku: HI98118 Hanna GroLine pH Tester The Hanna GroLine HI98118 pH/temperature tester is a pocket meter for measuring the pH of a hydroponic nutrient solution. This modern looking meter is only 0.7" thick and extremely ergonomic, fitting comfortably in your hand. The HI98118 has... MSRP: Our Price: Sale Price: $85.00 Add to Cart Compare Quick view Hanna | sku: HI98115 Hanna GroLine PH Checker Tester The Hanna GroLine PH Checker Tester HI98115 features advanced features for the measurement of pH in hydroponic nutrient solutions. The HI98115 is a very simple meter to operate with all functions including turning on/off and calibration... MSRP: Our Price: Sale Price: $60.00 Add to Cart Compare Quick view Bluelab | sku: BLU8004 Bluelab pH Controller Hands-free monitoring and dosing of solution pH levels. Features:• Automatic control and monitoring of system pH with reservoirs up to 200 US gal / 760 L• Plant-safe green back lit LCD with adjustable brightness• Large, easy to read... MSRP: Our Price: Sale Price: $699.00 Out of Stock Compare Quick view Hanna | sku: HI98131 Hanna GroLine pH/EC/TDS Combo Pen Hanna GroLine pH/EC/TDS Combo Pen Designed to bring simplicity to nutrient testing, the HI9814 Portable GroLine Meter is designed specifically for Hydroponic growers. The specialized electrode combines 3 sensors in a single rugged probe... MSRP: Our Price: Sale Price: $225.00 Add to Cart Compare Quick view Bluelab | sku: 16625 Bluelab Leap pH Probe (Probe Only) Bluelab Leap pH Probe (Probe Only) MSRP: Our Price: Sale Price: $126.00 Out of Stock Compare Quick view Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Compare Selected × OK
Quick view Hanna | sku: HI98118 Hanna GroLine pH Tester The Hanna GroLine HI98118 pH/temperature tester is a pocket meter for measuring the pH of a hydroponic nutrient solution. This modern looking meter is only 0.7" thick and extremely ergonomic, fitting comfortably in your hand. The HI98118 has... MSRP: Our Price: Sale Price: $85.00 Add to Cart Compare Quick view Hanna | sku: HI98115 Hanna GroLine PH Checker Tester The Hanna GroLine PH Checker Tester HI98115 features advanced features for the measurement of pH in hydroponic nutrient solutions. The HI98115 is a very simple meter to operate with all functions including turning on/off and calibration... MSRP: Our Price: Sale Price: $60.00 Add to Cart Compare Quick view Bluelab | sku: BLU8004 Bluelab pH Controller Hands-free monitoring and dosing of solution pH levels. Features:• Automatic control and monitoring of system pH with reservoirs up to 200 US gal / 760 L• Plant-safe green back lit LCD with adjustable brightness• Large, easy to read... MSRP: Our Price: Sale Price: $699.00 Out of Stock Compare Quick view Hanna | sku: HI98131 Hanna GroLine pH/EC/TDS Combo Pen Hanna GroLine pH/EC/TDS Combo Pen Designed to bring simplicity to nutrient testing, the HI9814 Portable GroLine Meter is designed specifically for Hydroponic growers. The specialized electrode combines 3 sensors in a single rugged probe... MSRP: Our Price: Sale Price: $225.00 Add to Cart Compare Quick view Bluelab | sku: 16625 Bluelab Leap pH Probe (Probe Only) Bluelab Leap pH Probe (Probe Only) MSRP: Our Price: Sale Price: $126.00 Out of Stock Compare Quick view Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Compare Selected × OK
Quick view Hanna | sku: HI98115 Hanna GroLine PH Checker Tester The Hanna GroLine PH Checker Tester HI98115 features advanced features for the measurement of pH in hydroponic nutrient solutions. The HI98115 is a very simple meter to operate with all functions including turning on/off and calibration... MSRP: Our Price: Sale Price: $60.00 Add to Cart Compare Quick view Bluelab | sku: BLU8004 Bluelab pH Controller Hands-free monitoring and dosing of solution pH levels. Features:• Automatic control and monitoring of system pH with reservoirs up to 200 US gal / 760 L• Plant-safe green back lit LCD with adjustable brightness• Large, easy to read... MSRP: Our Price: Sale Price: $699.00 Out of Stock Compare Quick view Hanna | sku: HI98131 Hanna GroLine pH/EC/TDS Combo Pen Hanna GroLine pH/EC/TDS Combo Pen Designed to bring simplicity to nutrient testing, the HI9814 Portable GroLine Meter is designed specifically for Hydroponic growers. The specialized electrode combines 3 sensors in a single rugged probe... MSRP: Our Price: Sale Price: $225.00 Add to Cart Compare Quick view Bluelab | sku: 16625 Bluelab Leap pH Probe (Probe Only) Bluelab Leap pH Probe (Probe Only) MSRP: Our Price: Sale Price: $126.00 Out of Stock Compare Quick view Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Compare Selected × OK
Quick view Bluelab | sku: BLU8004 Bluelab pH Controller Hands-free monitoring and dosing of solution pH levels. Features:• Automatic control and monitoring of system pH with reservoirs up to 200 US gal / 760 L• Plant-safe green back lit LCD with adjustable brightness• Large, easy to read... MSRP: Our Price: Sale Price: $699.00 Out of Stock Compare Quick view Hanna | sku: HI98131 Hanna GroLine pH/EC/TDS Combo Pen Hanna GroLine pH/EC/TDS Combo Pen Designed to bring simplicity to nutrient testing, the HI9814 Portable GroLine Meter is designed specifically for Hydroponic growers. The specialized electrode combines 3 sensors in a single rugged probe... MSRP: Our Price: Sale Price: $225.00 Add to Cart Compare Quick view Bluelab | sku: 16625 Bluelab Leap pH Probe (Probe Only) Bluelab Leap pH Probe (Probe Only) MSRP: Our Price: Sale Price: $126.00 Out of Stock Compare Quick view Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Compare Selected × OK
Quick view Hanna | sku: HI98131 Hanna GroLine pH/EC/TDS Combo Pen Hanna GroLine pH/EC/TDS Combo Pen Designed to bring simplicity to nutrient testing, the HI9814 Portable GroLine Meter is designed specifically for Hydroponic growers. The specialized electrode combines 3 sensors in a single rugged probe... MSRP: Our Price: Sale Price: $225.00 Add to Cart Compare Quick view Bluelab | sku: 16625 Bluelab Leap pH Probe (Probe Only) Bluelab Leap pH Probe (Probe Only) MSRP: Our Price: Sale Price: $126.00 Out of Stock Compare Quick view Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Compare Selected × OK
Quick view Bluelab | sku: 16625 Bluelab Leap pH Probe (Probe Only) Bluelab Leap pH Probe (Probe Only) MSRP: Our Price: Sale Price: $126.00 Out of Stock Compare Quick view Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Compare Selected × OK
Quick view Bluelab | sku: BLU2330E Bluelab Soil pH meter with probe The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $219.95 Out of Stock Compare Quick view Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Compare Selected
Quick view Bluelab | sku: BLU24115 Bluelab Soil pH Probe Only The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just... MSRP: Our Price: Sale Price: $99.95 Out of Stock Compare Compare Selected