hygger Aquarium Heater, 300W Fish Tank Heater with Intelligent LCD Digital Display Thermostat Controller, for 200-300L Freshwater Saltwater Tank

【Rapid Heating System】 The hygger aquarium heater 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.
【Heater Protection System】When the heater is exposed to air and not fully immersed in water, the aquarium heater will stop heating and sound an alarm. The controller displays "L1" and the heater switches off automatically. When the heating element is completely immersed in water, it starts working automatically. When the water temperature exceeds 35℃, the fish tank heater will stop heating and give an alarm, and the controller will display "HH".
【Accurate External Digital Controller】Our aquarium heater digital is equipped with a super clear digital LCD controller (higher resolution than LED), which displays the c