AQQA Aquarium Heater,300W 500W 800W 1000W 1200W Fish Tank Heater,59℉-93℉ Submersible Intelligence Aquarium Heater with Over-Temperature Dry Burning Protection 1200W to 155-265 Gallon

Temperature Range 59℉-93℉/15℃-34℃: Each press of the button increases by 1 ℉/1℃, 59 and 93 are a loop, pressing number to the highest will return to the lowest number; Press the button for 5 seconds to achieve conversion between Fahrenheit and Celsius degrees

Burned Protection, Safe and Reliable: When the heating rod leaves the water surface by 2.4 inches, automatically power off and The error code indicator light in the upper left corner appears red and flashes, When the heating rod is immersion into water, the error code is automatically repaired; In order to extend the service life, please put into the water than power on before use, and take out the water after the heating rod is cooled

Electricity Leakage Protector, Overtemperature Protection: When the heating rod detects that the water temperature is 3 ℉/3℃ higher than the set temperature, the current water temperature number will keep flashing to indicate the high temperature alarm and stop heating，Until the water temperature drops to the set temperature, it automatically returns to normal

Fast Heating, Intelligent Controller: Intelligent heating when the water temperature is 1 ℉/1 ℃ below the set temperature, Stopping heating when the set temperature is reached; The red whirl marquee light indicates heating, the green whirl marquee light indicates reaching the set temperature, and the whirl marquee light disappears when an error code occurs

Precautions For Use: Due to the heating rod to form scale in water for a long time, the accumulation of scale can affect heat dissipation and lead to safety issues；Therefore, we recommend regularly disassembling the heating rod shell to clean the rod body