... 0.5M,E3Z-T81-D, 2M,E3Z-T81-L, 2M,E3Z-T81-M1J,E3Z-T81-M1J- ... PNP Transistor OutputE3Z-T81A 2M Through-Beam Type , Pre-Wired Type , Sensing Distance 10m , PNP Transistor OutputE3Z ... Transistor OutputE3Z-T81K 2M Through-Beam Type (Oil-Resistant Model) , Pre-Wired Type , Sensing Distance 15mE3Z-T81K-M3J ... 0.3M Through-Beam Type (Oil-Resistant Model) , Pre-Wired M8 Connector Type , Sensing Distance 15m , ...