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HC-SR505 Mini Infrared PIR Motion Sensor Infrared Detector Module Smart 100 Carbon Fiber FPV RC Racing Quadcopter Frame Spare Parts Accessories Kit please ensure that the voltageHC SR505 Mini Infrared PIR Motion Sensor Infrared Detector Module Quality electronics from The Engineer Store, Bengaluru. Fast shipping, 7 day warranty on manufacturing defects, expert support. Product Overview The HC SR505 is a compact, high sensitivity infrared PIR (Passive Infrared) motion sensor module designed for detecting human movement and heat signatures. This mini detector is ideal for security systems, smart lighting, automated doors, and