Fluker's Thermometer - Hygrometer Combo helps you establish an appropriate Environmental Temperature Range (ETR) within your pet's enclosure. (78-82 degrees F and 60-80% Humidity for most Hermit Crabs) Fluker recommends using two thermometers mounted at opposite ends of the enclosure to help you monitor the ETR regularly.  

• available in one size

DIRECTIONS:

Attach combo dial to the inside of your hermit crab's enclosure.