Re infrared sensors are specifically designed to read the edge of soundtransparent webs, materials with very thick weaves and non transparent materials.
The size and connection of all models is identical, so they are totally interchangeable on the web guide, depending on the needs of the application. If two sensors are used simultaneously the centre guide can also be selected from the remote control unit.
The SU-M.25-SKB version is IP 54: protected from dust and splashing of water. AIR version has a special pneumatic connection to clean the reading zone from machining residue.