The Garden Highpro ProHygro digital thermo-hygrometer MEDIUM with probe and large display offers reliable measurements of temperature and humidity. With a three-line display, easy operation and memory function, it records daily highs and lows. The sensor with 1.5 meter cable is particularly popular with growers. This device allows switching between different units and has a measuring range of 0° - 50° C (32° - 122° F) for temperature and 25% - 90% for humidity. It is powered by a 1.5V AAA battery (included).