Tunze Osmolator 3155 Water Level Regulation System with NEW Magnetic Bracket
Other products by Tunze

Item #: DP-TZ-OSM3155
Our Price: $206.10
Availability: In Stock


Water level regulator with two sensor holding devices, extension and numerous fastening accessories. It is suitable for use in cabinet filter plants, in Comline filters or on the edge of the aquarium.
This osmotic regulator can also be used in TUNZE SYSTEM cabinet filter plants.
The sensors can be stuck to glass surfaces or can be fitted directly to the edge of the tank.
Delivery condition: Ready for mounting with power supply unit, metering pump, hose, sensor holding device.

The precise water level is ensured by a non-wearing optical sensor and a transistor switch without any moving parts. This sensor is insensitive to soiling, light or magnetic fields.
Its “automatic eye” recognises the water level precisely, even small waves or level variations cannot irritate the unit.
An independent safety sensor with a separate power supply circuit and relay control ensures reliable overflow protection.
An electronic time controller and current limiter for the pump connected result in a higher operational safety. This unit protects the metering pump against running dry and reports an empty storage container.
All functions are clearly displayed by LEDs; safety messages are also indicated by acoustic signals.
The osmotic regulators are all operated at safety extra-low voltage.

Metering pump capacity:

@ 0.9 m (35.4 in.): 52 l/h (13.7 US gal./h)
@ 1.5 m (59 in.): 47 l/h (12.4 US gal./h)
@ 2 m (78.7 in.): 27 l/h (7.1 US gal./h)
Hmax: 2.2 m (86.6 in.).

Osmolator Universal 3155.000 Product Manual


Average Rating:
(based on 6 reviews)

Showing 1 - 5 of 6 Reviews:

by rob
on 11/4/2011
So far so good. Not sure how I went so long without. Tank evaporates about 3 gallons a day.
by Andy
on 9/25/2011
great ATO
this is by far the best ATO I have ever used. setup was easy & adds water precisely to the level I wanted. gets a 5 star from me~
by Zorron
on 12/11/2010
The best
This is by far the best make-up water pump system available. This is my second one because after 2 years of service I dropped the first one in my sump. Very dependable and very precise. I dd not hesitate to buy another after I drowned my first one. Pump can run dry without damage and very simple to operate.
by Gyyro
on 11/2/2010
works as intended.
This thing is awesome! It was a little finicky at first, but once I did some forum searching I got it going good and it has been spot on ever since.. P.s. wash the optical sensor with warm soapy water before installing it will save you some stress with the start up.
by Worpdrive
on 8/10/2010
This systems work perfectly. I would highly recommend this unit for anyone needing a ATO. Comes with every thing you need except the bucket to put the pump in. Cons: Anytime you unplug and plug the control unit in, the pump runs for about 10 seconds.
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