Springfield Precision Instruments 91551 Digital Humidity and Temperature Monitor at $7.95, will make it easy for you to monitor temperature and humidity indoors. Easily attaches to a refrigerator or other metal surface with an included magnet that is attached to an easel that can also be used on a table or counter top, depending on your requirements.
Features:
Monitor indoor temperature displayed in degrees Fahrenheit or Celsius
Monitors indoor humidity levels between 20% and 95% (+/- 5%)
Temperature range: 32 degrees F to 122 degrees F (+/- 2 degrees tolerance)
Memory function to recall minimum and maximum temperature and humidity readings
LCD size .625" H x 1.5" W
Temperature range: 0 degrees C to 50 degrees C (+/- 1.1 degrees tolerance)
Mount indoors with tabletop easel stand or with magnet
