Submersible Aquarium Heater, 800W/1200W Fish Tank Heater, Double Tube Heating, Rapid Heating and Energy Saving, LED Digital Temperature Controller, Suitable for Sea Water and Fresh Water(1200W)

🐠【SAFE AND DURABLE】 The aquarium heater uses explosion-proof quartz tube, high temperature resistant environmental protection ABS plastic protective cover, high-definition LED digital display controller and high-quality power cord, which is safe and more durable for your fish tank 🐠【EXTERNAL SMART THERMOSTAT】 The controller uses PID smart chips, fast heating, high efficiency and energy saving, intelligently maintains constant temperature, and can accurately control the temperature within ±1ºF 🐠【POWER-OFF MEMORY FUNCTION】 When it recovers after a power failure, without any operation, the heater will automatically restore to the temperature setting before the power-off, saving you the trouble of resetting the temperature 🐠【PRODUCT FEATURES】 (1) The heater has automatic power-off protection function when it leaves the water surface. (2) Automatic fault detection, flashing prompt. (3) LED digital display, the fish tank temperature is clear at a glance. (4) Constant temperature protection