FT-S21W概述
FIBER 1.5MM THRUBEAM R1 BEND RAD
穿透光束 光学传感器 10.236"（260mm） -
得捷:
SENSOR THROUGH-BEAM 260MM
Allied Electronics:
Sensor, Photoelectric, Thrubeam, Fiber, 2m Free Cut, Non-Threaded, R1 Bend
Electro Sonic:
Photoelectric Sensor Thru-beam
在线购买FT-S21W