Sunleaves Didigtal Thermometer & Hygrometer Minimum/Maximum - This is a digital meter that features minimum and maximum temperature and relative humidity readings at the location of the meter. It also features a remote sensor with a 10 foot cord for measuring the temperature in an alternative area. It has an indoor temperature range from 32 degrees F to 122 degrees F or 0 degrees C to 50 degrees C, an outdoor temperature range from -58 degrees F to 158 degrees F or -50 degrees C to 70 degrees C and a humidity range from 20% RH to 99% RH. Also features a built-in foldaway stand for tabletop use and includes 2-sided tapes and screws for optional wall mounting. This thermometer uses one 1.5 volt AAA battery (included).