Minder Research TM22291VP Tempminder® Fridge/Freezer Thermometer

The TempMinder Fridge and Freezer Thermometer is designed specifically to make sure your fridge or freezer is running at full efficiency, without needing to look inside! With a magnet mount, this thermometer mounts directly to the outside of your fridge or freezer. Plus, with its minimum and maximum (MIN/MAX) temperature history, you will be able to tell if the temperature rose due to power loss.