AQQA Aquarium Heater,1000W Submersible Fish Tank Heater,with Over-Temp Protection & Explosion-Proof Quartz Glass,Submersible Aquarium Heater with LED Thermostat Controller,for Fish Tank 500-1000L

Efficient Heating:AQQA Aquarium heater is made of explosion-proof quartz material, offers rapid and efficient heating with superior thermal conductivity. High temperature resistant, shatterproof and explosion-proof,ensuring safety and reliability for your aquarium.

Overheating & Anti-Dry Protection: The fish tank heater stops if the water temperature exceeds the set point by 1°C. If it rises rapidly by 3°C, the display will flash the current temperature and stops heating. If the heating rod is more than 1 inch out of the water, it shows an "E0" error code and stops heating

Intelligent Automatic Heating: Submersible Aquarium Heater adopts automatic constant temperature control. When water temp reaches the set temp, it will stops heating; when the water temp falls lower than the set temp by 2℃/°F, it will automatically heat up again; Memory function allows no need to reset the temperature after a power outage, so it is more convenient to unplug and change the water.

Safe and Easy to Use: Adjust the temperature with the external controller. Press the “SET” button to enter temperature settings, increasing the set temperature by 1°C with each press within a range of 15°C to 34°C. Long press for 5 seconds to switch between Fahrenheit and Celsius.

Kind Remind:The heater for aquarium fish tank must be fully immersed in water.Do not place the external temperature controller in the aquarium. The controller is not waterproof. Please unplug the power supply when clean the aquarium or change water