U-SHP 5MM PW NPN 3M
Optical Sensor Through-Beam 0.197" 5mm NPN - Dark-ON/Light-ON - Selectable Module, Wire Leads, Slot Type
得捷: SENSOR OPT SLOT NPN MODULE 3M
艾睿: Photoelectric Sensor Thru-beam Light ON/Dark ON NPN 0.005m 4-Pin
Omron 欧姆龙