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US$3.00
The HC-SR501 Infrared PIR Motion Sensor Module auto-senses light in various applications (in house, basement, outdoor, warehouse, garage, etc,) for ventilator control, alarm, etc. Infrared technology (LHI778 probe design) high sensitivity & high reliability. ultra-low-voltage. widely used especially for battery-powered products. This HC-SR501 Infrared...