hygger Aquarium Heater, 100W/200W/300W/500W/800W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic Power-Off Fish Heater with Digital Controller for Freshwater and Saltwater

Brand: hyggerColor: BlackFeatures: 【Rapid Heating System】 The hygger aquarium heater HG079 is made of the most stable nickel-chromium heating wire, which can quickly and stably transfer heat to the surroundings, making water heating faster and more durable. It has a built-in dual temperature control system of Fahrenheit and Celsius, you can long press the controller's setting button for 2-3 seconds to switch 【Temperature Alarm and Auto Shut-off】This aquarium heater has a intelligent temperature and water sensor system, when the heater is out of water, the water tempe. exceeds 93℉, or the water temp. is below the 59℉, the heater will automatically stop heating (continues heating when the temp. is below 59℉), and the controller will display error codes and sound an alarm. Error codes: HH - overheating, LL - low temperature, L1 - heater out of the water. Multiple protections for fish safety 【Accurate External Digital Controller】Our aquarium heater is equipped with a super clear digital L