Retroreflective sensor OBR50M-R300-2P1-V1, Retroreflective sensor, Retroreflective Sensors, Pulse Ranging Technology (PRT), Optimized for use with fixed reflectors, Good alignability due to red transmission LED, Reliable detection of reflecting metall objects, Simple operation with only one Teach-In button, Highly visible LEDs for Power ON and switching state, Easy to use