Liquid crystal thermometer for all sorts of reptile, amphibian or invertebrate enclosures. Scale from 70 to 105F (21 to 40C), with simple to read crystal coloring. Correct temperatures are a need for digestion and metabolic functions in reptiles and amphibians. That is the precise first time thermometer for any cage, a reptile must never be sold or bought with out one! A really perfect additional thermometer (when the use of the Precision Analog Thermometer or Precision Analog Thermometer & Humidity Gauge) for monitoring heat gradients.