Key Features

1. Multifunction LED Controller: Easy-to-use digital display, shows current & set temp. Set temp. with “+” or “-” buttons.
2. Memory & Constant Temp: Retains settings during power outages, resumes heating when power returns, flashing light indicates 1°F/1°C below set temp.
3. Dry burning protection, over temperature alarm, memory, intelligent temp. control, ℃/℉ conversion.
4. Temp. range: 59℉-93℉, ±1℉ accuracy. Auto stops heating at >95℉ (LED flashes “HH”, beeps), resumes at <93℉.
5. The heater shuts off if 5cm above the water, flashes “E1” & beeps. Resumes heating when submerged.
6. Safe, high-temp fish tank heater with ABS guard, explosion-proof quartz, & nickel-chromium wire. Stable, efficient, durable, and long-lasting. Perfect for fresh & marine aquariums.

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, turtle tanks, small ponds, and various other aquatic environments. This aquarium heater 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 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. The heater will flash and initiate heating when the water temperature drops 1°F/1°C below the set point. However, 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 LED 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 the heater 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 itself is made of explosion-proof quartz. This design 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. Water Circulation: Utilize a wave maker or circulating pump in your fish tank. Effective water circulation aids in the even distribution of heat.

6. Maintenance: Regularly clean the heating plate to maintain heating efficiency. Impurities on the heating plate can reduce its performance.