Why You’ll Love It
hygger Quartz Tube aquarium heater is made of the most durable, stable double quartz tubes. It is designed with dry burning protection and overtemperature alarm protection. The HG102 heater will maintain the temperature settings until the power comes back. Ideal for marine saltwater and freshwater fish tanks and small ponds range of 5-280 gallons.
Key Features
Durability and Stability
The hygger 102 quartz tube heater boasts the most resilient double quartz tubes, making it versatile for aquariums ranging from 5 to 280 gallons. Perfect for saltwater and freshwater fish tanks and various other aquatic environments. It is engineered with advanced safety features to prevent dry burning and includes over-temperature alarm protection, memory retention, and intelligent constant temperature regulation functions.
Memory Function and Automatic Heating
The HG102 quartz tube heater retains its temperature settings even when the power is interrupted, ensuring that your aquarium maintains the desired temperature until power is restored. It will resume heating if the water temperature falls below 93°F to maintain safety and effectiveness.
Temperature Protection Mechanism
If the water temperature exceeds 95°F, the heater will automatically cease heating, the controller will flash “HH,” and an audible beep will sound. Heating will resume automatically when the water temperature drops 1°F/1°C below the set temperature.
Multifunction LED Controller
The smart constant temperature digital display controller is user-friendly, allowing you to monitor and adjust the current and set water temperatures easily. Use the “+” or “-” buttons to input your preferred temperature, and switch between Celsius (℃) and Fahrenheit (℉) with ease through the controller.
Overheating & Out of Water Alarm Protection
The quartz tube heater operates within a temperature range of 59°F to 93°F with an accuracy of ±1°F. If it is positioned more than 5cm above the water level, it will automatically shut off, the LED will flash “E1,” and an alarm will sound. The heating function will resume once the heater is fully submerged in water.
Rapid Heating, Safety, and Durability
Constructed with an ABS guard, the quartz tube aquarium heater features a high-temperature-resistant nickel-chromium wire for heating and silicon carbide for thermal conductivity. The heating element is made of explosion-proof quartz, which ensures the heater is stable, efficient, and safe, offering a longer service life and extended heating performance.
Usage Tips
1. Complete Submersion: Ensure the heater is always fully submerged in water; avoid burying it in sand or exposing it to air.
2. Power Disconnection: If you need to cease the heater’s operation, unplug the power socket and wait 15 minutes before changing the water or removing the quartz tube heater.
3. Controller Protection: Keep the external temperature controller away from water, as it is not designed to be waterproof.
4. Installation Position: We suggest installing the heater underwater near the water intake, vertically or horizontally. Vertical placement is space-efficient.
5. Maintenance: Regularly clean the heating plate to maintain heating efficiency. Impurities on the heating plate can reduce its performance.

Specification

Package:
1 x Quartz tube heater with LED digital controller
1 x 3 pcs suction cups
1 x User Manual

















I love it just what i need for my 55 will keep buying from hygger for now until I stop my hobby
The digital thermostat is great. Just set the desired temperature and it works great.
I’m running it on a 20 gallon long which the heater is a bit overkill for but it works beautifully and I love how it displays the water temp along with set temp
Works amazing, gonna purchase another when i upgrade my kois tank.