Reptile Systems External Dimming Thermostat, temperature control in both aquatic and terrestrial environments. Unlike on/off thermostats, this device uses dimming technology to precisely manage the electrical flow to your heating element. This ensures the temperature of your freshwater or saltwater aquarium, or your terrarium, remains consistently at your desired level. Perfect for large aquariums, indoor ponds, and terrariums, this thermostat provides reliable temperature regulation for a variety of habitats.
