... T81, 0.5M,E3Z-T81-D, 2M,E3Z-T81-L, 2M,E3Z-T81-M1J,E3Z-T81-M1J-1 ... Type , Sensing Distance 15m , PNP Transistor OutputE3Z-T81 2M Through-Beam Type , Pre-Wired Type , Sensing Distance ... Type , Sensing Distance 15m , PNP Transistor OutputE3Z-T81A 2M Through-Beam Type , Pre-Wired Type , Sensing Distance ... Distance 0 to 10m , PNP Transistor OutputE3Z-T81K 2M Through-Beam Type (Oil-Resistant Model) , Pre- ...