hygger Aquarium Heater,600W/800W Submersible Fish Tank Water Heater Double Quartz Explosion-Proof with Separate Temperature Measurement System for Freshwater Saltwater Tank (600W)

1 Dual temperature control system: one chip with two independent heating systems. When the temperature control system of one heating rod fails, the temperature control system of the other rod can continue to work, reducing the occurrence of frozen fish in the fish tank caused by damage to the heating rod, and ensuring the constant temperature of the fish tank

2 Heating speed is controllable: the two heating tubes have independent temperature control, and the temperature control range is: 64-93℉. The heating rod is evenly wound with 20 nickel-chromium electric heating wires, dissipating heat evenly at 360°. The heating speed and power can be controlled by individually adjusting the temperature of each rod

3 Easy to operate, the full immersion heater is equipped with three suction cups, which can be firmly installed in every corner of the fish tank; the outer shell can be slid away, making cleaning more convenient; the temperature can be adjusted by directly rotating the top knob; the sealed waterproof plastic can protect the internal chip. Improved durability

4 Accurate temperature control: There are two sets of temperature measurement systems with built-in dual temperature probes to monitor the current water temperature in real time. When the detection reaches the set temperature, it stops heating and starts heating when it is lower than the set temperature. The temperature control error can be controlled within ±1 Within ℉

5 Suitable for seawater and freshwater fish tanks, fighting fish tanks, turtle tanks, etc. 600W is suitable for 66-132 gallon fish tanks, and 800W is suitable for 80-220 gallon fish tanks. When installing, please completely submerge it with water and do not place it on sand and gravel