Speed Measuring Sensor Groove Coupler Module For Arduino best price
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- Using imported groove optical coupling sensor, width 5mm.
- It has the output state light, if output high level, the lights are off. if output low level, it on.
- If it covered, it will output high level; otherwise, its output low level.
- Good signal and waveform, with a strong driving ability for more than 15mA.
- Equipped with a fixed bolt hole, easy install.