Key features

• •Explosion-proof & Anti-scalding Aquarium Heater. We know you've had too many troubles when using the heater (the heating tube cracked or your fishes were scalded), so we designed this upgraded fish tank heater for you. By using a high temp resistant and explosion-proof quartz tube with 304 stainless steel, the heater has a long service life. With the latest protective shell, your fish will never be scalded again.
• •Energy Saving Fish Tank Heater. Adopt energy-saving technology,the 200watt aquarium heater has fasting heating function, which will heat quickly to create a suitable living environment for your beloved fishes, let them no longer fear the cold winter anymore.
• •Precise Temperature Control Submersible Fish Heater. By using high-precision intelligent IC chips, the heater works properly to provide accuracy and stable temperature. And you don't have to worry about your fish being cooked anymore.
• •Water Shortage Protection. When the aquarium heater 20 gallon isn't fully submerged in the water or exposed in the air, it will auto stop working with the error code occurred on the controller, which ensures your safety as well as your aquatic pet's.
• •Over-Temperature Protection. Szelam aquarium heater will automatically stop heating when the water temp exceeds 95℉ (error code HH displayed), with the green indicator light and the digital controller flashing. The heating element won't heat until the water temperature drops to normal temperature.