Digital Submersible 100W Aquarium Heater

Why you'll love it

Keep your aquatic friends comfortable with precise temperature control and smart safety features. This digital heater prevents overheating and dry running while maintaining perfect water temps for healthy fish and turtles.

Product Description

This 100-watt submersible heater is designed for smaller tanks, handling 12-25 gallon aquariums with ease. The external digital controller lets you adjust temperatures from 68°F to 93°F (20°C to 34°C) without getting your hands wet. The LED display shows real-time temperature and error codes for easy monitoring.

Built with a thickened explosion-proof quartz tube and metal-ceramic heating elements, this heater provides fast, energy-efficient warming. After 72 hours of continuous operation, it maintains consistent water temperature. The 5.35 ft (1.6 m) power cord gives you flexibility in tank placement.

Smart safety features include automatic dry-run protection (E1 error code) and overheating protection (E2 error code). If either error appears, simply remove the heater from water and reinsert to reset.

Interesting Points

Smart Safety Features

The intelligent induction unit with auto memory function protects both you and your fish. Built-in sensors detect dry running and overheating conditions, automatically shutting down to prevent damage.

External Digital Control

No more reaching into the tank to adjust settings. The external controller with LED display lets you monitor and adjust temperature precisely while keeping your hands dry.

Energy Efficient Design

Metal-ceramic heating elements provide fast, consistent heating while using less electricity. The explosion-proof quartz construction ensures long-lasting durability.

Versatile Installation

Install vertically in fish tanks or horizontally in turtle tanks. The compact design works perfectly in low water level setups where larger heaters won't fit.

Product Specifications

• Power: 100 watts
• Tank capacity: 12-25 gallons
• Temperature range: 68°F to 93°F (20°C to 34°C)
• Power cord length: 5.35 ft (1.6 m)
• Construction: Explosion-proof quartz tube
• Heating elements: Metal-ceramic
• Display: LED digital with error codes
• Safety features: Anti-dry protection (E1), overheating protection (E2)

Usage Notes

• Press and hold for 3 seconds to toggle between °C and °F
• Do not bury heater in sand or substrate
• Install vertically in fish tanks, horizontally in turtle tanks
• If error codes E1 or E2 appear, remove from water and reinsert to reset
• Allow 72 hours for temperature stabilization

Package Inclusion

• 100W submersible aquarium heater
• External digital temperature controller
• Power cord (5.35 ft)

Perfect for betta tanks, turtle habitats, and small aquariums where precise temperature control matters. The digital display and external controller make monitoring effortless while smart safety features give you peace of mind.

Shipping and Returns

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