Optical slot speed measuring sensor for arduino

Slot Sensor ST-303NA-W slot sensor Pepperl Fuchs Slot Sensor Dealer, Supplier in Hyderabad, Peddakanjerla, Rudraram, Yeddumailaram, Bhanur, Mokila, Muthangi, Ramachandrapuram-Bhel Twp, slot 27 Slot Sensor, T-shaped, selectable, Light off when objects are detected, NPN NO+NC, Sensing distance 5mm, 2m 4-wire cable

slot 879 Function, Slot sensor Design, Fork Light type, Red Operating voltage, 10…30 VDC Output function, NO contact, PNPNPN Electrical connection, Cable