Indoor/ Outdoor Thermometer Hygrometer BT-3

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

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