Cheap And Discounts EE-SY671, Transducers Optical Sensors Reflective - Logic Output,0.039" ~ 0.197" (1mm ~ 5mm) ADJ White Paper Module, Connector Wholesale. Buy Directly From Merchant Shop1103806344 Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.