Aquarium Heater, 100W/200W/300W/500W Adjustable Fish Tank Heater with Intelligent Digital LED Controller, Overheating and Out of Water Protection for Freshwater and Saltwater Tanks

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About This 🎏【Multi-functional Aquarium Heater】This 300W aquarium heater is perfect for 40-75 gallon fish tanks, betta tanks and turtle tanks. The submersible aquarium heater comes with intelligent dual temperature control system, out of water and overheating protection function, the size is 9.4x1.69x1.29 inches, smaller size takes up less space, can be well hidden in the aquarium tanks. 🎏【Rapid Heating Fish Tank Heater】The inner layer of this aquarium heater is equipped with efficient heat-generating high quality nichrome wire and silicon carbide heating technology for more rapid heating. The middle layer is equipped with quartz sand with stronger heat conduction efficiency to dissipate heat more evenly. The outer layer is wrapped with high-temperature resistant glass tubing and ABS hard plastic shell to protect your aquarium tanks from the risk of "boiling fish". 🎏【Adjustable LED Large Screen Controller】This fish tank heater is equipped with a new generation of upgraded LED large screen external controller with ℉ and ℃ dual temperature control system, click the “+” and “-” buttons on the right side of the controller to increase or decrease the temperature, simultaneously long press the “+” and “-” buttons for 2-3 seconds can realize the switching between ℉ and ℃. Temperature control range: 63-94℉/17-34℃. 🎏【All-round Safety Protection】Our aquarium heater is equipped with high temperature protection, when the aquarium temperature is higher than 94℉, the heater bar will stop heating automatically, at this time, the controller shows HH, and beeps as a reminder. When the heater bod leaves the water surface by 5cm, the heater will also stop heating automatically, and the controller will display E1 and beep to remind you. 🎏【Easy to Install and Memory Function】The tank heater shell is equipped with two strong suction cups for easy mounting anywhere on the tank wall or bottom, the memory function of the controller will automatically return to the temperature set before the power failure when you turn off the power, please remember that you need to completely submerge the heater bar body in water before use. 🎏【Care and Maintenance】To prolong the life of your aquarium heater, we recommend you clean your heater rod body frequently, please remember to unplug and cool it for 15-20 minutes before removing the heater rod housing. Since the relay of the controller is a wearable part, we recommend you to replace the new heater in 1-2 years, depending on your usage conditions and environment. If you have any questions, please feel free to contact us! Show more