Hygger 240 Gallon Aquarium Heater for Saltwater and Freshwater Tanks

【Accurate Temperature Control】 Achieve precise temperature regulation with our intelligent inverter technology. The aquarium heater maintains a steady temperature through a built-in chip, offering an accuracy of 0.1°F. This level of precision surpasses traditional heaters. The device supports dual temperature settings in Fahrenheit and Celsius, with a temperature range of 63-94°F (17-34°C). For easy switching, long-press the controller's set button for 2-3 seconds.

【Overheating/Low Temperature/Dry Running Protection】 Our aquarium heater is equipped with three sophisticated protectors to ensure the safety of your aquatic life: - Overheating: Displays "HH" and automatically shuts off heating if the water temperature exceeds 93°F. - Dry Running: Shows "Auto shut off" when the heater loses water, which automatically cuts off the power. - Low Temperature: Displays "LL" and continues heating if the temperature drops below 59°F.

These features protect your fish from overheating, undercooling, and damage caused by dry operation, ensuring a safe and healthy environment.

【Digital LED Display & External Temperature Controller】 Our smart LED screen is fully waterproof and clearly shows the current water temperature, set temperature, operating power, error codes, and operational status. A red light indicates the heater is in the heating phase, while a white light signals it has stopped to maintain the temperature. Adjust the target temperature by simply pressing the set button on the external controller.

【Efficient And Explosion Proof】 Crafted with explosion-proof quartz glass and premium thermally stable nickel-chromium wire, our heater quickly and steadily transfers heat to the surroundings. The heat-resistant ABS material encasing the heater ensures it won't cause burns to your aquatic life. Always unplug the power and wait 10-20 minutes before cleaning or changing the water.

【Built-in Temperature Sensor, Power-off Memory Function】 The memory function in the heater retains the final settings. In the event of a power outage, the heater resumes the previous settings when power is restored. Our aquarium heaters are suitable for varying tank sizes: - 600W: Ideal for fish tanks up to 60-120 gallons. - 800W: Best for fish tanks up to 120-180 gallons. - 1000W: Suitable for tanks up to 180-240 gallons.