Mammoth digital thermo-hygrometer with external probe.

The LCD display allows you to read the temperature and relative humidity detected by the probe at a glance. Storage of maximum/minimum values. Battery included.
 
Mammoth digital thermo-hygrometer technical specifications:
Temperature range: 0°C to 50°C
Humidity Range: 10-99%
Accuracy: Temp. ± 1 °C Humidity ± 5%
Conversion to °C and °F
Use a 1.5 volt AA battery.