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an infrared sensor and an infrared emitter diode forming a proximity sensor and a diode led to visible light, places in absolute adjacency and directly in the body illuminating, able to turn on or turn off the diode led to light visibi
an infrared sensor and an infrared emitter diode forming a proximity sensor and a diode led to visible light, places in absolute adjacency and directly in the body illuminating, able to turn on or turn off the diode led to light visibi
