MantaMaze is committed to providing every user with the highest quality products and services. Their '【Explosion-proof Quartz Aquarium Heater】' features a heating element composed of two explosion-proof quartz glass tubes and high-temperature resistant nickel-chromium heating wires, utilizing the latest aerospace technology for fast, consistent, and more evenly distributed heat. Housed in V0 grade ABS flame retardant plastic, the fish tank heater is IP68 waterproof, corrosion resistant, and high-temperature resistant, making it stronger and more durable.

The '【Overheating & Out of Water Protection】' function is a crucial safety feature. When the aquarium heater head is 2 inches (5 cm) out of the water, the heater will automatically stop heating, the controller will display the "E1" and sound a beeping alarm until the heater is completely submerged in the water. Additionally, if the water temperature exceeds 34°C/94°F, the heater will automatically stop heating, and the controller will display the "HH" and sound the beeping alarm until the water temperature drops below 34°C/94°F.

The '【Precise Temperature Control System】' ensures accurate temperature regulation. Two temperature sensors on the heating rod and a newly upgraded additional temperature probe form a precise water temperature sensing system. The Automatic Constant Temperature Function maintains temperature accuracy of ±1°F; when the water temperature is higher than the set temperature, the adjustable aquarium heater will automatically stop heating, and when the water temperature is lower than the set temperature, the adjustable fish tank heater will restart heating.

The '【Digital LED Controller】' provides a user-friendly interface. The temperature range is 63-94℉/17-34℃, and the temperature can be set with the "+" and "-" buttons (long press the "+" and "-" for 5 seconds to switch between ℉ and ℃). The LED display can show the current water temperature and the set temperature simultaneously, with the red light indicating heating start and the green light indicating constant temperature. The memory function can automatically retain the previous setting when the heater is restarted, eliminating the need for repeated setup.

The '【Wide Range of Use】' makes this 300W fish tank heater suitable for 20-80 gallon fish tanks. The tank water heater length is 6.8 inches, and the voltage is 110-120V. Users can choose a suitable aquarium heater according to the provided parameters. This fish tank heater can be widely used in freshwater and saltwater fish tanks, turtle tanks, and aquariums. The heater guard has strong suction cups, making it easy to install the aquarium heater on the tank walls or bottom. MantaMaze provides a 12-month warranty for this product.

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