hygger Aquarium Heater 500W/800W/1000W,Fish Tank Heater with Danger Warning Automatically Stops Heating System and Digital LED Controller,for Freshwater or Saltwater 60-135 Gallon Tank

Dual Temperature Sensing Technology: Aquarium Heater adopts dual temperature probe design, which can feedback the temperature changes of the fish tank in real time to ensure accurate temperature measurement. When the actual water temp. is within 1℉ of the set temperature, it auto enters the standby state to avoid energy waste; once the temp. difference exceeds this range, it immediately starts full power heating to quickly restore the appropriate water temperature and create a stable and comfortable living environment for aquatic life

Flexible dual control mode, easy to operate: Fish Tank Heater combines two temperature control modes, ewasily control the temperature of the fish tank.Rotation and button, to meet the operating habits of different users. Please install it at an angle of 30° to 45°. Use with a wave pump will help probe accurately identify the temperature and evenly heat the Fish Tank water

Real-Time Power Display: During the heating process, the current heating power will be displayed on the submersible heater controller screen in real time, allowing you to intuitively understand the heating efficiency and energy consumption. This function not only helps to save energy and power, but also allows you to know the working status of the adjustable temperature heater clearly, making it safer to use

Safety Lock And Alarm System: For your safety, this thermostat-controlled heater is specially designed with a lock function. You need to press and hold the button for five seconds to unlock it, effectively preventing safety hazards caused by misoperation. At the same time, the built-in sound alarm system will immediately sound an alarm and automatically stop heating when it detects abnormal conditions such as dry water or excessive temperature, ensuring the safety of the device and aquatic life

Comprehensive And Detailed Design: The power cord is equipped with a protective cover to effectively resist wear and tear and extend its service life. Whether it is a freshwater fish tank, a saltwater fish tank or a small pond, this adjustable aquarium heating element can become your ideal choice for maintaining the ecological balance of the aquarium with its excellent durability and wide applicability. 500w is suitable for 60-135 gallon fish tanks