Proximity Sensor SMTO-8E-NS-S-LED-24 Electric, contactless, NPN, for drives with T-slot, without mounting kit, with M8 plug. Design=for T-slot, Authorisation=C-Tick, CE mark (see declaration of conformity)=to EU directive for EMC, Materials note=(* Free of copper and PTFE, * Conforms to RoHS), Measuring principle=Magnetoresistive