5mm Groove Optical Coupler Sensor Module for Arduino Motor Speed Detection

Key Highlights

• ✓Imported groove optical coupling sensor, width 5mm
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• ✓ Output state light: High level → Lights off, Low level → Lights on
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• ✓ Covered state: Outputs high level; Otherwise, outputs low level
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• ✓ Strong signal and waveform, driving ability >15mA
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• ✓ Equipped with a fixed bolt hole for easy installation
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• ✓ Uses LM393 wide voltage comparator
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• ✓ DO output interface directly connects to a microcontroller IO port
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• ✓ Can detect block presence, motor speed, and encoder signals
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• ✓ DO module can connect to relay, limit switch, or buzzer for alarm functions