Proximity Sensor Smtso-8E-Ns-M12-Led-24 Electric, Contactless, Npn, for Drives with T-Slot, without Mounting Kit, with M12 Plug, Welding Field Resistant Design. Design=For T-Slot, Authorisation=Rcm Mark, Ce Mark (See Declaration of Conformity) =To Eu Directive for Emc, Special Characteristics= (* Welding Field Immune, * Resistant to Welding Spatter) , Materials Note=Free of Copper and Ptfe, Festo