Hygger Aquarium Heater, HG998

hygger submersible aquarium heater with an adjustment knob can be used for small betta coral tanks, suitable for both saltwater and freshwater, it is designed especially for 15-80 gallon fish tanks. A very compact ETL Certification aquarium heater, and easy to hide in the aquarium.

ETL Certification Aquarium Heater

hygger 998 Aquarium Heater is certificated by ETL with a quality advantage. It is double-protected and has passed UL certification. For safety, a fuse is installed inside. When the aquarium heater is plugged in, the fuse will be automatically disconnected after the heater is out of the water for more than 3 minutes, and the fish tank heater will not be damaged.

Note: At this time, even if you put the heater back to the water, the heating work indicator is still on, but not working again.

Automatic Stop & Restart

You can set the temperature from 68℉-93℉ to maintain constant and stable temperatures for fresh or marine water, and the exactness is within 2 degrees Fahrenheit. As a fully submersible water heater, it includes two suction cups for mounting in any suitable position horizontally or vertically.

Heater + Thermometer

The thermometer monitoring range is 0°C ~ 50°C/32℉ ~ 122℉. It has a long-lasting power supply and a replaceable Battery.
Three-digit digital display makes monitoring more accurate and can monitor the temperature in real time.
The mini body is adsorbed on the wall of the fish tank, so there is no need to worry about taking up space. The thermometer has powerful functions, a built-in temperature probe, and a display to one decimal place.

Durable Quartz Glass

This 998 aquarium heater tube is made from heat-resistant quartz glass, up to 2mm Explosion-proof glass. So it can be used in freshwater and saltwater aquariums, and the service life can be 3 years or more. Use white alundum sand as the heat-conducting media.

Fully Submersible

This heater is also waterproof. It must be fully submerged in water when working. Place it horizontally or vertically near the water intake or the way where water flows.

Overheat Protection

The heater will automatically shut off once the water temperature is over 93℉.

• ETL Certificate plug
• top adjust the temperature twist
• 2mm Explosion-proof Glass
• temperature scale setting guide bar
• Bottom Protective Cover
• Powerful double suction cup
• Black hidden heating wire glass shell
• Special fuse