BT-3 Indoor/ Outdoor Thermometer Hygrometer

Specifications: 1) temperature measuring range: -50~ +70°C (-58 ~ +158°F) 2) humidity measuring range: 20% - 99% (relative humidity) 4) Resolution: 0.1 °C /0.1 F ;1%RH 5)Power supply:1.5V DC 7#battery 6)Operation environment: temperature 0-50 °C ;Humidity:5%-99%RH Application: Measure and display indoor/outdoor temperature and indoor humidity. Alarm function and clock function. 24/12hour model switcher Features: 1) Measure and display the indoor/outdoor temperature and indoor humidity 2) Automatically memorise the max./min. values of the indoor/outdoor temperature and indoor humidity 3) Switch between °C and °F 4) Clock function and alarming function 5) 12/24 hour mode switch 6) Recovery function on the max./min. values