Proximity Sensor Sme-8M-Ds-24V-K-0, 3-M8D Electric, with Reed Contact, for Drives with T-Slot, Assembly From Above, with M8 Plug. Authorisation= (* Rcm Mark, * C Ul Us - Listed (Ol)), Ce Mark (See Declaration of Conformity) =To Eu Directive for Emc, Special Characteristics=Oil Resistant, Materials Note= (* Free of Copper and Ptfe, * Conforms to Rohs) , Measuring Principle=Reed Magnetic, Festo