Hygger Fully Submersible 800 W Aquarium Heater With External Temperature Display Controller Upgraded Double Quartz Tubes Fish Tank Heater For 80-190 Gallon, Suitable For Marine And Freshwater

External Digital Display ControllerWith its easy-to-use LED digital screen simultaneously displays the set temperature and the current aquarium temperature. You’ll be able to set temperature up in a healthy range of 59 to 93°F with button and monitor how well the heater is doing its job in real-time. Double Tubes Heating ElementFeaturing shatterproof quartz glass tube + nickel-chromium heating wire for fast steady more evenly distributing heat. With a PC plastic guard to protects your fish touch it they won’t get burnt. Running-Dry Shut Off ProtectionThis is a completely submersible heater that will stop working when exposed to air and display error code E1 which resets itself to resume working when placed back into the water. Overheating ProtectionThis fish tank heater automatically turns off and displayed “HH” error code once the water temperature reaches 95°F. Until it drops to the set temp. Accurate temperature controls within 1°F difference. Works in both Freshwater and Saltwater TankThe 800 watt aquarium heater can be used to heat for a 80-190 gallon aquarium. The package included two suction cups that easily installed vertically or horizontally underwater below 5 inch.