ISTA MICRO Temperature Controller Thermostat 500W/1000W Heater Heating Aquarium tank Globally This Digital Temperature Controller is an excellent and convenient multifunction device for measuring and controlling temperature in Aquariums. The stability of aquarium temperature is one of the crucial factors that contributes to the health and safety of your fish. By utilizing the temperature controller, you can provide an environment with optimal temperature for your fish. This advanced temperature controller can measure and control temperature from 20 to 35 C in Aquarium. It has 3 power socket and maximum loading power is up to 1000 W. The controller set provides two Free500W Heating Rod ing Rod . The heating rod has over heating protection so it will automatic power off for heating rod when measured temperature reach 36 C. For aquarium in-door use only.