Hygrothermograph

BT-3 

Temperature measuring range: -50~70 Degree Centigrade
Humidity measuring range: 20% - 99% (relative humidity)
Resolution: 0.1degree centigrade  ; 1%RH
Power supply:1.5V DC AAA battery

Measure and display the indoor/outdoor temperature and indoor humidity
Automatically memorise the max./min. values of the indoor/outdoor temperature and indoor humidity
Switch between degree centigrade and Fahrenheit
Clock function and alarming function
12/24 hour mode switch
Recovery function on the max./min. values