2 Stück LM393 Optische Empfindliche Lichterkennung Lichtempfindliche Sensor 4-polig 3-polig

1 Using photosensitive resistance sensor sensitive type;. 2 Pcs Photosensitive Resistance Sensor Module 3-Pin or 4-Pin. 6 The comparator output, signal clean, good waveform, driving ability is strong, for more than 15 ma;.

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