hygger 800W Aquarium Heater, Upgraded Submersible Fish Tank Heater with Dual Protection System & LED Digital Display, with Automatic Power-Off Function, for 80-220 Gal Freshwater and Saltwater Tank

Upgraded Dual Temperature Control System Aquarium Heater: This aquarium heater is equipped with 2 intelligent protector. Even if one protector fails, the other will continue to operate to prevent damage to the product and its circuitry, avoiding overheating and "cooking the fish". This dual protection of the aquarium heater greatly ensures the safety of you and your aquatic organisms Beep Alarm, Comprehensive Protection: This heater has a unique intelligent water and temperature sensor system, providing comprehensive protection: ①Over-temperature alarm: When water temperature exceeds the max temperature 94℉, it shows "HH" and automatically stops heating. ②Off-water alarm: When the water level is lower than aquarium heater's water level, it flashes "Auto Shut Off" and automatically stops heating. ③ When the water temperature is below the min temperature 57℉, it shows "LL" External Controller with LED Digital Display: The tank heater with a LED temperature controller, It clearly shows the real-time water temperature, set temperature, operating power, error codes, and heating status. You can monitor the water temperature and set temperature in real time. Variable temperature settings range: 58-93℉. Each press will change 1℉. The external control reduces the risk that water gets in and burn out the heater, and allows you to adjust the heater without getting hand wet Premium Safety & Durability: This fish tank heater uses explosion-proof quartz glass, combined with a high-temperature resistant nickel-chromium heating wire and a quartz sand heat conduction, resulting in faster water heating and more even heat distribution. The strong black ABS protective shell is easier to hide, and effectively protecting both you and your aquatic pets from scalding 800W Aquarium Heater for 80 to 220 Gallons: The 800 watt aquarium heater produces stable power with quick heat up. It's length is 10.8'', power cord is 10.1ft. It is suitable for 80 to220 gallons tank, can be used for saltwater and freshwater aquariums, fish tanks, turtle tanks, small ponds, and so much more. Please select the appropriate heater according to our size chart. If there is any problem with our product, please contact us, we are happy to provide you with after-sales service. › See more product details