The Cobalt Aquatics 25 watt Accu-Therm is an advanced, fully submersible heater designed for use in aquariums up to 6 gallons in size. Equally capable in both freshwater and saltwater environments, it features an easily calibrated thermostat that is computer-tested accurate to ± 2 ° Fahrenheit. Each Accu-Therm heater is engineered with a Triac circuit that turns the heater on and off at lower voltage, and magnetic thermostat contacts that ensure positive connection and release of the thermostat switch.
The Cobalt Accu-Therm Heater features a high quality ceramic radiator that delivers even heat distribution from its heating elements. Designed for extended life and reliability, it is constructed with a protective borosilicate glass casing which provides superior shock resistance and heat delivery. A convenient on/off indicator light is also built in to let you know when the Accu-Therm is actively heating your aquarium. For quality assurance and peace of mind, the Cobalt Aquatics Accu-Therm Heater is backed by a 3 year limited manufacturer's warranty.