High-tech for reliable water level control in your aquarium.
In 1985, TUNZE® invented the water level compensation system for aquariums. Many considered this accessory superfluous… but they overlooked the essential point: sensitive aquatic animals require constant osmotic pressure in their living cells. The Osmolator® (for Osmotic Regulator) is easy to install and includes all the necessary accessories for various operating situations. Only the Osmolator®, based on 25 years of TUNZE® experience in water level measurement, will provide the precision and reliability essential to your aquatic ecosystem.

A mini optical sensor recognizes the exact water level.

The 5017 controller has visual function signaling and audible fault signaling.

With new magnetic mounts, easy to assemble!

Dual safety features: the operating sensor is an optical sensor. In case of malfunction, a second safety sensor shuts off the device and triggers an audible alarm. Furthermore, the dosing pump is limited to a 10-minute operating time.

The Osmolator® comes complete with a power supply, dosing pump, tubing, controller, and magnetic sensor mounts. All you need to add is a reservoir and water!