Thermometers And Hygrometers Round Hygrometer For Terrariums

These will last for a little while, but ironically don't work well in high humidty environments - once they get a little moisture internally they fail. They also need to be very close to the substrate to correctly gauge the actual humidity/temp your herp is experiencing, and the enclosure should have a few (hot/cool/basking spots). I prefer digital temp/hydrometer combos, Fluker's makes a good one, and honestly the cheap home ones work great too.

Pros: Cheap and easy

Cons: Not durable

i had this when i had a lizard and then a hermit crab. they both died, but i dont think it had anything to do with the humidity levels, i had them for quite awhile. it attaches easily and is very easy to read and is accurate.

Pros: easy to use

Cons: none