... Pre-Wired Type , Sensing Distance 5 to 100mm , NPN Transistor Output Omron E3Z-D61 Diffuse-Reflective Photoelectric SensorOmron E3Z-D61 ... SensorPre-Wired Type , Sensing Distance 5 to 100mm , NPN Transistor OutputE3Z-D61 0.5M Diffuse-Reflective Type , Pre-Wired ... , Pre-Wired Type , Sensing Distance 5 to 100mm , NPN Transistor OutputE3Z-D61K 2M Diffuse-Reflective Type (Oil-Resistant Model) , ...