Bluelab PPM Pen

Bluelab ppm Pen Measures conductivity and temperature and is a great way to ensure plants are receiving the proper amounts of nutrients. This pen features a backlit LCD display, optional calibration and a successful calibration indicator, a...

Bluelab Truncheon Meter

Bluelab Truncheon Meter Gardeners can easily measure and maintain nutrient strength levels with the waterproof Truncheon Meter. Truncheon Meter reads in EC (0.2-3.6), CF (2-36), TDS/ppm 500 (100-1800) and ppm 700 (140-2520). Accurate within ±...

Hanna GroLine EC/TDS Pen

The Hanna GroLine EC/TDS Pen HI98318 is a pocket meter for measuring the EC/TDS of a hydroponic nutrient solution.   This modern looking meter is only 0.7" thick and extremely ergonomic, fitting comfortably in your hand. The HI98318 has a...

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...

Bluelab Pulse Multimedia EC/MC Meter

Bluelab Pulse Multimedia EC/MC Meter Bluelab® Pulse Multimedia EC/MC Meter is a new innovation that connects directly to your mobile device. Quickly spot check, correct, achieve better yield and grow healthier plants across a wide range of growing...

Hanna GrowLine Direct Soil EC/Temp Tester

The Hanna GrowLine Direct Soil EC/Temp Tester HI98331 Soil Test™ is a pocket tester specifically designed to directly measure soil conductivity (EC) and temperature.  With a compact size, single-button operation, and automatic...