Thru-beam sensor (pair) OBE20M-R103-S2EP-IO-0,3M-V1-L, Laser thru-beam sensor, Thru-Beam Sensors, Miniature design with versatile mounting options, DuraBeam Laser Sensors - durable and employable like an LED, 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, Easy to use