As measurement element for our humidity measuring applications a special prepared hair is used. Hairs are reacting on



hygroscopic, that means they change length underinfluence of humidity. The changing is a dimension for relative



humidity. The dryer the hair, the faster the reaction. They show a higher value. For exact measurement a regeneration



phase have to take place.

Round hygrometers, axial mounted measurement element on the backside of the housing. For installation in ventilation


ducts or clima ducts.