IOAOI Aquarium Heater for Fish Tank 50W for up to 20 Gallons Tanks Shatterproof for Both Marine and Fresh Water Engineering Plas

IOAOI heaters are made with high quality components and provide required heating for aquariums. Precise and reliable temperature control Temperature range from 68?-88?, adjustable via a simple knob on the top. High quality sensor providing +/- 1 ?accuracy . It means that the heater will go back to work if the temperature drops 1? than the set temp. Explosion proof The IOAOI aquarium heater is made with Engineering Plastic Tube outside and Stainless Steel Tube inside to prevent explosion. And also leakage protected. Red control light An on/off light indicates if the heater is operating. Fully Submerible This insulated heater is safe and must be fully submersible, and can easily be installed by attaching the suckers to the glass. Package contains 1 x IOAOI heater with 6 FT cord. 2 x suckers Note Please Please read the instructions on the box before using. Adjust the temperature of the heater a couple of degrees HIGHER or LOWER than needed if the temperature of the water doesnt meet the requirements. And keep the knob where it is if the temperature of the water stays stably at the needed temperature.