Left Banner

  • Marimo

client says

client says

Tunze Osmolator 3155

Tunze Osmolator 3155

Tax included Shipping excluded
Available within 2 to 6 weeks
  • Osmolator to precisely compensate for water evaporation in your aquarium.
: Tunze

Product available for orders

Delivery policy


Return policy

  Free delivery from 90 CHF *

Except Aquarium, sands and rocks or bulky object

TUNZE 3155 Osmolator is an osmolator that allows you to precisely compensate for water evaporation in your aquarium.


This osmolator is designed to be placed in filtration under aquariums (decantations), TUNZE Comline filters or directly at the edge of the tank.


This system is made up of 2 sensors and a pump. The first sensor is used to detect a drop in level and triggers the pump which will carry out the filling.

The second sensor must be placed in the water reserve to stop the pump if the water level is too low so that the pump does not overheat when running dry.

The double sensor magnetic support is designed for glass thickness up to 15mm, the single sensor magnetic support up to 12mm.


This level regulator is delivered complete and ready to use with a Controller, two level sensors, two magnetic supports for sensors and its accessories.

The pump of this osmolator is guaranteed for 2 years.

The osmolator is a system that automatically manages the replenishment of water in an aquarium to compensate for evaporation. The physicochemical parameters and salinity of the aquarium can thus remain constant for the well-being of invertebrates and fish.


When the water level drops in the aquarium, the Controller of the TUNZE 3155 Osmolator activates the dosing pump placed in the tank until the lack of water is compensated.

If for technical reasons the regulation sensor should be defective or if the dosing pump should no longer stop, the second safety sensor will prevent the aquarium from overflowing and will activate a light and sound alarm.

If the operating time of the dosing pump exceeds 10 minutes, the pump is automatically stopped with a signal.


Contents of the box:

- 1 mains power supply

- 1 dosing pump

- 1 pipe

- 1 holder

- 1 Magnet Holder with two sensors

- 1 Magnet Holder for separate anti-overflow sensor


Features :


- A static sensor with infrared technology recognizes the exact water level.

- An additional safety sensor ensures reliable monitoring.

- The controller 5017 protects the dosing pump from running dry and signals an empty tank.

- The 5017 controller has optical function signaling and acoustic fault signaling.

- The Osmolator operates at 11 Volt safety voltage.

Out of Stock

Use collapsible tabs for more detailed information that will help customers make a purchasing decision.

Ex: Shipping and return policies, size guides, and other common questions.

You might also like

16 other products in the same category: