With easy to read liquid crystal colouring.
Proper temperatures are a necessity for digestion and metabolic functions in reptiles, amphibians and fish.
Sticks to the outside of the tank. Green Indicator shows the Actual Temperature Reading.
This is the ideal "first time" thermometer for any tank or cage.
Place one in the inside centre of the vivarium, or better still you can place one at each end, so displaying the heat gradient.