Thru-beam sensor (pair) OBE12M-R102-SEP-IO-V31, Emitter, Thru-Beam Sensors, Miniature design with versatile mounting options, IO-Link interface for service and process data, Various frequencies for avoiding mutual interference (cross-talk immunity), Extended temperature range-40 ?°„C ... 60 ?°„C, High degree of protection IP69K, Highly visible LEDs for Power ON and switching state, Easy to use