SANIL(山一)光电传感器/光电开关BR-20RS,BR-20GN,BR-20GH,BR-20N***放大器光电传感器在有限的存储空间，准确的检测部分头五花八门可以检测色彩对比BR-20RS4mm???-Cable:2m-BR-20GN50mm???-Cable:2m-BR-20GH30mm???-Cable:2m-BR-20N80mm???-Cable:2m-)