About This

Constant Temperature and Automatic Heating: When the water temperature heats up to the set temperature, the heating will stop automatically; and the water will heat up automatically when the water temperature is lower than the set temperature by 2℉ or 2℃
Heating Temperature Range 59-93°F/15-34°C: Press the SET button, each press increases the temperature by 1°F or 1°C, the temperature setting range is 59-93°F/15-34°C; press and hold the SET button for 5s, converts between Fahrenheit and Celsius
Over-temperature Protection: When the water temperature temperature is higher than the set temperature by 3℉/3℃, stop heating, when the water temperature is lowered to less than the difference of 3℉/3℃ over-temperature alarm stop blinking
Automatic Power-off When Leaving Water: When the heater detects that the water surface is 1 inch below the top of the heater, displays error code E0, automatically cut off, when the heater is re-immersed in the water, automatically return to normal
Precautions For Use: Please check for any cracks in the quartz tube before use; Forbidden to bury the heater; It is essential to use with a water circulation system; Please regularly disassemble and clean the heater every 1-2 weeks

AQQA Aquarium Heater,Submersible Fish Tank Heater 59-93°F/15-34°C External Controller,Rapid Heating,Ultra-high Temperature Protection,Automatic Power-Off When Leaving Water (200W for 26-53 Gallon)