Rehn Instruments develops, manufactures and markets high quality testing equipment for laboratory and on-site measurements.
One of our products is apparatus for testing the permeability of different textiles.

Water permeate meter VLM-100 consist measurement tank with 0.01 m2 area ' 150.0 mm high.
The bottom of the tank could be opened and the measured textil sample could be install to the place.
The controller of the water pump keeps the level of water constant.

The permeability is then measured against the constant time, for example 2 minutes.