Reading temperature & RH can now be as simple as glancing at your tool bag. This compact hygrometer & thermometer has a key ring that makes it easy to attach to just about anything. Display updates every 10 seconds.
Be sure to select Celsius or Fahrenheit.
Specifications:
Approx. 2.1" W x 2.0" H x 0.6" D
Operates on two LR44 watch batteries (included)
Humidity measuring range: 10%-99%RH
Humidity measurement accuracy: ±5%RH
Temperature measuring range: -58℉-158℉
Celsius Unit Temperature Specs:
Temperature measuring range: -50℃ to 70℃
Temperature measurement accuracy: ±1°C