Tunze Osmolator 3 - Automatic Water Level Monitoring and Overflow Protection

Overview

The Osmolator 3 from Tunze is the latest all-in-one auto top-off solution designed for modern aquariums. Built in Germany, it combines a precision water level sensor with a reliable metering pump to automatically compensate for evaporated water, helping maintain stable conditions over time. The optical sensor detects even tiny level changes with 0.5 mm accuracy and remains resistant to air bubbles, deposits, and scratches.

Key advantages

• Maintains more consistent water levels, contributing to steadier salinity in reef and freshwater setups.
• Easy setup with plug-and-play operation; no configuration required.
• Space-saving integrated design that attaches to aquarium edges or filter lips up to 15 mm.
• Built-in safety measures that help protect livestock and equipment during topping up.

Performance you can rely on

An independent thermal safety sensor monitors overflow conditions and can stop the Turbelle High Jet 5030 pump instantly if overfill is detected, delivering true overflow protection. The high-tech metering pump delivers up to 6.2 m of head with a quiet, smooth 3-phase sine wave.

• Maximum head height: 6.2 meters (20.34 feet) for versatile setups.
• Quiet operation reduces noise in living spaces or offices.
• Durable abrasion-resistant Tunze cable and corrosion-resistant push-in connectors.
• Hydrolysis- and decay-resistant tubing to keep the system reliable over time.

Durable build and easy maintenance

Constructed as a compact, all-in-one unit, Osmolator 3 ships with the Turbelle High Jet 5030 pump, a robust power supply, hose, and hose holder. The design supports a compact storage tank as the reservoir and is designed for long life, with a five-year warranty and renewable-material packaging.

From the pump to the sensor, Osmolator 3 is manufactured in a German facility in Penzberg. Every component is chosen for reliability in marine conditions, including corrosion-resistant G1/4 pass-through connectors, waterproof plugs, and a flexible low-kink hose that resists hydrolysis and decay.

What’s included and compatibility

The Osmolator 3 arrives ready to install with a high-tech metering pump, power supply, hose, and mounting hardware. It is optimized for aquarium setups ranging from small to large, and the components are designed for easy assembly and secure fit with standard G1/4 inch connections.

Environment and warranty

Produced in Germany by MEDIKabel, the Osmolator 3 is delivered in packaging from renewable materials and carries a five-year warranty, reflecting Tunze commitment to durability and reliability.