Digital Aquarium Heater with Temperature Controller

Why you'll love it

This smart aquarium heater keeps your fish comfortable with precise temperature control and safety features that protect against overheating and dry burning. Keep reading for all the details.

Product Description

Your fish deserve consistent, safe water temperatures, and this 600W submersible heater delivers exactly that. The external digital controller displays current water temperature, your set temperature, and heating status on a clear LCD screen—no more guessing or getting your hands wet to check settings.

Built with stable nickel-chromium heating wire inside a thickened quartz glass tube, this heater distributes warmth evenly throughout your tank. The intelligent chip automatically stops heating when water exceeds 93°F (34°C) and resumes when it drops below 59°F (15°C), keeping your aquatic friends safe from temperature shock.

Perfect for tanks ranging from 66 to 135 gallons, this heater works in both freshwater and saltwater environments. The memory function remembers your temperature settings even after power outages, so you can travel worry-free knowing your tank will maintain the right conditions.

Interesting Points

Smart External Controller

The waterproof design separates the heater from the controller, so you can adjust temperatures without getting your hands wet. Switch between Fahrenheit and Celsius with a simple button hold.

Multiple Safety Features

Built-in protection against overheating (HH), low temperature (LL), and dry burning (L1) with clear error codes and alarm prompts to keep your fish safe.

Even Heat Distribution

Nickel-chromium heating wire and thickened quartz glass ensure stable, fast heat exchange that brings your tank to temperature safely without shocking your fish.

Power Outage Memory

Never worry about losing your settings during power outages—this heater remembers your preferred temperature and automatically resumes heating when power returns.

Product Specifications

• Power: 600W
• Suitable for: 66-135 gallon tanks
• Temperature range: 59-93°F (15-34°C)
• Accuracy: ±0.1°F
• Cord length: 10 ft (3 m)
• Compatible with: Freshwater and saltwater
• Display: External LCD digital controller
• Material: Quartz glass tube with ABS plastic shell

Usage Notes

• Calculate heater needs: Tank volume ÷ 1000 × 2 = required wattage
• Press and hold setting button 2-3 seconds to switch temperature units
• Monitor error codes: HH (overheating), LL (low temp), L1 (dry burning)
• Allow heater to reach room temperature before moving between hot and cold water

Package Inclusion

• 600W submersible heater
• External digital controller
• 3 suction cups
• Controller bracket
• Mounting hook
• 10 ft power cord
• User manual

Keep your aquatic friends happy and healthy with precise temperature control that works around the clock, even when you're away.

Shipping and Returns

• Listed Shipping: 2–4 days.
• Returns: Returns policy.