Package size 8cm x 5cm x 2cm (3.15in x 1.97in x 0.79in) Wiring:1, VCC: positive power supply (5V)2, GND: power supply is negative3, OUT: high / low (digital signal 0 and 1) Robot line following sensor moduleSKU: BOB-15000$3.15PriceQuantity*Out of StockNotify When Available