hygger Upgrade Ceramic Aquarium Heater, 100W Digital Fish Tank Heater with Automatic Power-Off and Over-Temperature Protection, Energy Saving Submersible Aquarium Heater for Freshwater and Saltwater

Explosion-proof Ceramic Aquarium Heater is Durable and Safer: The submersible aquarium heater is made of explosion-proof ceramic material and high-temperature resistant nickel-chromium heating wire. The ceramic has high thermal stability, good temperature control and constant temperature performance, energy saving and electricity saving, long service life, and can work continuously and stably. High-temperature resistant ABS shell, which can effectively protect fish from scalding

Automatic Constant Temperature with 1℉Accuracy: This aquarium heater can effectively keep the water at a stable temperature. When the water temperature reaches the set temperature, the water tank heater will stop heating; when the water temperature is 1℉ lower than the set temperature, it will restart heating. In addition, the heater has a memory function, there is no need to reset the temperature after power failure. Safe and easy to use, creating an ideal home for your fish is effortless

Out of Water Protection, Overheating Protection: This fish tank heater has a unique intelligent temperature and water sensor system. When the heater lacks water or heats rapidly beyond the highest temperature of 95℉, the heater will automatically stop heating and display an error code to ensure the maximum safety of you and your aquatic life and prevent "boiling fish"

Digital LED Display and External Controller: This fish tank heater has a built-in temperature sensor, the digital display can intuitively view the real-time water temperature, the indicator light on the heater is on for heating, and off for constant temperature. No need to immerse your hand in the water to turn the dial, you can easily adjust the temperature through the external controller without scaring your lovely fish. The range is from 64℉ to 95℉

Wide Range of Uses: 100W aquarium heater is suitable for 5-20 gallons of seawater or freshwater tanks, perfect for fish tanks, turtle tanks, fighting fish tanks, small ponds, fish markets, etc. Strong suction cups can stably fix the heater in every corner of the fish tank. Please keep the heater fully submerged, be sure to unplug the power plug before changing water or cleaning, and let the heater cool for 15 minutes.