CTH609 Digital Thermometer and Hygrometer
Time Thermometers & Hygrometer in One!
Read indoor temperatures-hygrometer from inside your house. Large, easy-to-read LCD screen allows you to see the results even in bright sunlight. Unit runs off 1.5VDC AAA batteries.

Features
Click function display of “hour”,”minute”,and “AM/PM”, Time format switch able (12hours format or 24 hours format)
Temperature measuring  range:  

 IN side temperature:  -10~+60℃（14~+140°F）

OUT side temperature: -50~+70℃（-58~+158°F）
Precision: ±1℃ ( ±1.8°F)
Resolution:  0.1℃（0.1°F）
Humidity measuring ranges:20%RH to 95%RH(Display between 20%RH~99%RH)
Resolution:1%        precision: ±8%RH
Memorization of maximum/minimum temperature and maximum/minimum humidity.