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HC 89 Interrupt Sensor 16x2 LCD Module (Green) ~60mm diameter glass lens Alligator ~60mm diameter glass lens Alligator Clips 2 adjustable crocodile clip arms with ball joint articulation Clip Jaw Opening Approx or mechanical demonstration setups 3V 5V DC Output Type Digital (High Low) with onboard comparator Onboard Comparator IC LM393 (or equivalent) Slot Width ~5mm (gap for object interruption) Detection Object Opaque objects passing through the slot Response Time Fast (microsecond level switching) Output Indicator Onboard LED for visual status feedback Sensitivity Adjustment Onboard potentiometer for threshold tuning Interface Pins VCC and troubleshooting included free with every purchase
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