THRU-BEAM 50M DIE-CAST InFRARED LED DC12-24V, NPN
可传导的 光学传感器 1967.5"（50m）164.05" NPN - 开路集电极
得捷:
SENSOR TRANSMISSIVE 50M NPN OPEN
Allied Electronics:
THRU-BEAM 50M DIE-CAST InFRARED LED DC12-24V, NPN
Electro Sonic:
Photoelectric Sensor Thru-beam Light ON/Dark ON NPN Open Collector 50m