Hydrofarm Germination, Reptiles and Brewing Jump Start MTPRTC Digital Controller Thermostat for Heat Mats, Seed Ge, 9-by-19-1/2-Inch The only safety ETL certified thermostat on the market Provides constant optimal temperatures for germination/rooting Ideal in homebrewing for maintaining desired fermentation temperature, and perfect for temperature control in reptile terrariums and small pet enclosures. LED heating indicator light and Digital temperature control Controllable range of 68F - 108F, Choice of Celsius or Fahrenheit readout (press Up or Down button to change) 1 Year Warranty