In 1983 TUNZE Aquarientechnik introduced one of the first water level regulators to aquariums. Today’s generation of Osmolator contains a static and compact sensor with infrared technology, achieving an osmotic stability in fresh-water and marine aquariums through a precise, regular and safe compensation of the evaporated water. The Osmolator 3155 comprises a controller, two sensors, two magnet holders for sensors and numerous accessories. If you want to fully automate the 3155 in conjunction with your RO system we recommend this unit - Tunze Ro Controller 8555

An infra-red operated mini sensor recognises the water level precisely.

A second safety sensor permits a reliable functional control.

 protects the metering pump against running dry or reports an empty storage tank.

displays all functions optically and sounds a signal in case of failures.

The Osmolator is operated on 11 V safety extra-low voltage.