USE: Widely used in motor speed detection, pulse count, the position limit, etc.
The module features:
1. It uses a imported trough type optical coupling sensor, groove width 5 mm.
2. The output state light open = output low level
3. Covered light closed = output high level
The comparator output provides a clean, good waveform signal.
Provides more than 15 ma. Drive current when used with a working voltage of 3.3 V to 5 V