Why You’ll Love It
Experience efficient heating with the durable quartz double-tube design and external digital controller for accurate readings. Safety features ensure peace of mind: the unit cuts off when dry or overheats and retains key settings via memory. Suitable for varied aquatic environments, it’s a versatile and dependable addition to any tank.
Key Features
Dual Heating for Even Heat Distribution
Double quartz tubes and the built-in dual temperature probe ensure rapid, uniform heating, durability, and explosion resistance.
Precise Digital Control
LED display with a wide temperature range suited for virtually any tropical tank, it is easy-to-read temperature settings and precise control. You can adjust the temperature from 59–93°F (15–34°C).
Built-In Safety Mechanisms
Stops operating if dry or overheated, preventing damage to your aquarium. The hygger 001 heater can automatically shut off in the event of running-dry and overheat conditions.

Submersible-Ready & Versatile
The fully submersible design is compatible with both freshwater and saltwater tanks.
Perfect Power for Your Tank
Choose the 500W model for medium tanks or the 800W model for larger volumes, ensuring optimal coverage.

Usage Tips
1. Ensure full submersion—heater must be immersed before power-on.
2. Allow unit to cool (~15 min) before handling or removing from water.
3. Maintain water flow around the heater to avoid hotspots.
4. Keep the heater clear of substrate or decorations to prevent damage or cracking.
5. Pressing and holding the button for 5 seconds changes it from F to C readouts
Specification
















Awesome heater, pretty accurate temperature too. Easy to read display. Easy to set. Would buy again!