Why You’ll Love It

Achieve precise and consistent water temperature with the hygger 043 Double Quartz Heater series. Designed for freshwater and saltwater tanks, this submersible quartz heater offers fast, even heating and long-lasting durability and is available in 300W, 500W, 800W, and 1000W options, ideal for tanks 40–260 gallons.

Key Features

Precision Temperature Control with Smart Chip

Accurate to ±0.1°F, ensuring stable and safe heating with an overheat alarm for added aquarium protection.

Digital LED Controller with Bracket Mount

Easy-to-read display shows current and preset temperatures, power status, and warning alerts; allows simple temperature adjustment.

Submersible & Explosion-Proof Design

Made from durable quartz glass and high-temperature nickel-chromium heating wire for fast, safe, and long-lasting heating.

Auto Shut-Off & Anti-Dry Protection

Automatically powers off if the water temperature exceeds safe limits or if the device is removed from the water, preventing overheating and dry-run damage.

Built-in Thermometer & Memory Function

Continuously monitors water temperature and remembers settings after power interruptions for consistent performance.

Usage Tips

Proper Installation:

• Fully submerge the heater in water before powering it on to avoid motor damage and ensure accurate temperature sensing.

Controller Placement:

• Use the included bracket to securely mount the digital controller on the tank edge for easy access and real-time monitoring.

Temperature Setting:

• Adjust the temperature using the intuitive LED controller—simply press the SET button to select the desired temperature within the 59°F to 93°F range. The heater automatically stops heating when the preset temperature is reached.

Safety Features:

• The heater features an auto shut-off function that activates if water temperature exceeds 94°F or if the unit is lifted 5 cm above water, preventing overheating and dry-run damage. An audible alarm and warning indicators alert you to abnormal conditions.

Monitoring & Alerts:

• Regularly check the LED display for water temperature, power status, and any warning signals. The memory function retains your settings even after power interruptions for continuous operation.

Placement Tips:

• Position the heater away from direct contact with tank decorations or substrate to ensure even heat distribution and prevent damage. For tanks requiring multiple heaters, use units with staggered settings for optimal temperature stability.

Specification

• 300W: For 40–80 gal tanks | 10.8″ heater | 110–120V | 10.1 ft cord
• 500W: For 65–135 gal tanks | 10.8″ heater | 110–120V | 10.1 ft cord
• 800W: For 80–220 gal tanks | 10.8″ heater | 110–120V | 10.1 ft cord
• 1000W: For 130–260 gal tanks | 10.8″ heater | 110–120V | 10.1 ft cord

Package:
1 x Heater rod
1 x Controller holder
3 x suction cups (includes 1pc spare part)
1 x Hook
1 x User manual