Hygger 800W Aquarium Heater for Freshwater and Saltwater Tanks

Accurate External Digital Controller

Control your aquarium temperature with precision using the hygger External Digital Controller. This high-definition LCD display shows the current water temperature, set temperature, and heating status, allowing for easy monitoring. The separation design keeps the heater and controller dry, enhancing the aquarium’s waterproofness and protecting your electrical components.

Simply press and hold the setting button for 2-3 seconds to switch between Fahrenheit and Celsius. The adjustable temperature range is 59-93°F, with an accuracy of ±0.1°F.

Safety Features

Our aquarium heater is equipped with a water temperature sensing system that ensures safety. When temperatures deviate, the controller will display error codes and issue alarm prompts. Overheating (HH) will trigger the Overheat-HH code, low temperature (LL) will show the Low-Temperature-LL code, and dry burning (L1) will display the Dry-Burning-L1 code. The chip will intelligently control the heater, stopping it from heating when the water temperature exceeds 93°F and automatically restarting when it drops below 59°F. This guarantee keeps your fish safe and protected.

Stable, Fast, and Even Heat Dissipation

The hygger heater features a stable nickel-chromium electric heating wire, a thickened quartz glass explosion-proof tube for efficient heat conduction, and an ABS plastic shell for protection. This design ensures stable heat generation and rapid heat exchange with the tank water, bringing the water temperature to the desired level quickly and safely, while protecting your fish from burns. Over the long term, this will significantly reduce electricity bills.

Memory Function

Forget about worrying about temperature settings during vacations. This heated aquarium will remember the set temperature and resume its settings after a power outage. The heater will automatically restart with the last set temperature, providing consistent heat for your aquatic pets. The unit includes three suction cups, a controller bracket, and a hook, along with a 10ft external power cord for convenient installation.

Choosing the Right Fish Tank Heater

Choosing the right heater for your fish tank depends on the size of your tank. Use the formula: (tank length × height × width) ÷ 1000 × 2 to determine the required wattage. Our 800W adjustable aquarium heater is suitable for tanks ranging from 80 to 220 gallons. It can be used in home fish tanks, fish markets, aquariums, and fish ponds, making it a versatile choice for various aquatic environments.