Omron E3Z-R81 Retroreflective Photo-electric Sensor Pre-Wired Type , Sensing Distance 4m , PNP Transistor Output E3Z-R81, E3Z Omron E3Z-R81 Retroreflective Photo-electric SensorPre-Wired Type , Sensing Distance 4m , PNP Transistor OutputE3Z-R81,E3Z-R81-C1E3Z-R81H,E3Z-R81-H,E3Z-R81K 2ME3Z-R81K-M3J, 0.3M,E3Z-R81-M1J, 0.3M,E3Z-R81-M5J, 0.3M,E3Z-R86,Retroreflective Type , Pre-Wired Type , Sensing ...