Sensor Kecepatan Speed Groove Coupler Photoelectric IR Count Counter

Item Features
Working voltage: 3.3V~5V
5mm Groove width
Output form: Digital switch output (0 and 1)
Using wide voltage LM393 comparator
Sensing slots are blocked, the output high and the light is off; no shelter, output low and lights.
VCC: + power
GND: – power
DO: Digital Output
AO: Invalid