... 20X10.8X31,E3Z-T81, 0.5M,E3Z-T81-D, 2M,E3Z-T81-L, 2M,E3Z-T81- ... Distance 15m , PNP Transistor OutputE3Z-T81 2M Through-Beam Type , Pre-Wired Type , Sensing Distance 15m ... Sensing Distance 15m , PNP Transistor OutputE3Z-T81A 2M Through-Beam Type , Pre-Wired Type , Sensing Distance 10m ... , PNP Transistor OutputE3Z-T81A 5M Through-Beam Type , Pre-Wired Type , Sensing Distance 10m ...