azw Aquarium Heater 300W/500W/800W, Fish Tank Heater with Digital LED Controller, Frequency Conversion Energy Saving, IPS Anti-Boiling Fish, Multiple Intelligent Protection for Freshwater/Saltwater

Safety Stable Rapid Heating - AZW aquarium heater is made of double explosion-proof quartz glass, high-temperature resistant nickel-chromium electric heating wire and quartz sand thermal conductive material. It heats quickly, conducts heat evenly, is double explosion-proof, and is more reliable to use. The outer shell of the heating rod is made of high-temperature resistant ABS material to protect your fish and aquatic life from being scalded.

Comprehensive Protections - ① Off-water warning: When the heater is not completely submerged in water, it will flash "auto shut off" and automatically stop heating. ② Over-temperature protection: it will stop automatically when the set temp is reached; it will automatically power off and buzz an alarm when it exceeds 97.7℉, the controller will display "E2". ③ IPS anti-boiling fish: when the heating rod is detected to be out of control, IPS automatically starts and cuts off the power supply.

Intelligent Energy Saving & Digital LED Controller - Precision mode: start heating when the water temp is 1℉ below the set temp. Energy saving mode: start heating when the water temp is 2℉ below the set temp, truly effective energy saving. Heating to the specified temp and switch to standby mode. Digital LED controller displays the current water temp, the set temp, the heating status, and the warning of high temperature/auto shut-off, high accuracy ±1°F, the LED screen is clear at a glance.

Memory Function & Easy to use - The AZW fish tank heater will remember the temperature setting, there is no need to reset the temp after a power outage, so It is more convenient to unplug and change the water. Easy and quick installation, submersible fish tank heater, vertical or horizontal placement using 2 suction cups. NOTE: Please make sure that the heater is completely submerged in the water before turning on the power, and used it with a water flowing area for more accurate temp.

Wide Range of Use and Warranty - The 300 watt adjustable aquarium heater is suitable for 40-75 gallon tanks. It can be used in fish markets, fish tanks, aquariums, turtle tank, fish ponds and other places where aquatic life is kept. It offers 12 months after-sale service, if you have any problems with our fish tank heater in the future, please do not hesitate to let us know and we will do our best to help you slove it.