hygger Aquarium Heater, 500W 800W 1000W Submersible Fish Tank Heater with LED Digital Display Over-Temperature Protection and Automatic Power-Off, for Saltwater and Freshwater Tank up to 240 Gallon

【Accurate Temperature Keep watch over】Thanks to the intelligent inverter technology, the aquarium heater keeps the water at a constant temperature through the built-in chip, the accuracy is 0.1F, a lot more precise than traditional heaters. It has a built-in dual temperature Keep watch over system in Fahrenheit and Celsius. (temperature range: 63-94°F/17-34°C). You’ll switch between them by long-pressing the controller’s set button for 2-3 seconds
【Overheating/Low Temperature/Dry Running Protection】Our aquarium heater has three intelligent protectors: ①Overheating: When the water temperature exceeds 93°F, the heater displays the error code “HH”, and automatically stops heating. ②Dry running: When the heater outs off water, “Auto shut off” will flash and automatically cuts off the power. ③Low temperature : When the temperature is below 59 °F, it’ll display “LL” and continue heating. More than one protections to eliminate “boiled fish”!
【Digital Led Display & External Temperature Controller】This aquarium heater features a unique smart LED screen that is completely waterproof and clearly displays the current water temp., set temp., current operating power, error codes, and current operating status. With the red light on, the heater starts heating water. When the light turns white, the heater stops working to handle the temperature. Simply press the set button on the external controller to set the target temperature
【Efficient And Explosion Proof】Our aquarium heater is made of explosion-proof quartz glass and the most thermally stable nickel-chromium wire to transfer heat to the surroundings quickly and regularly. Whilst the shell covering all the heater is made of heat-resistant ABS material, which can protect your aquatic life from burns. Note: Please unplug the power and let the heater cool for 10-20 minutes before taking it out to clean the fish tank or change the water
【Built-in Temperature Sensor, Power-off Memory Function】Memory function – The final settings are stored in the heater. If a power outage occurs, the heater will follow the final settings when the power is restored. The 600W aquarium heater is suitable for fish tanks 60-120 gallons, the 800W aquarium heater is suitable for fish tanks 120-180 gallons, and the 1000W aquarium heater is suitable for fish tanks 180-240 gallons.