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5pcs Infrared Parking Sensor Kit Infrared Reversing Speed Reminder Electronic PCB Circuit Board Production DIY Kit

3pcs Hall Magnetic Induction Sensor Magnetic Detection Magnetic Pole Resolver North and South Pole Detection Module DIY Kit

3pcs Infrared Parking Sensor Kit Infrared Reversing Speed Reminder Electronic PCB Circuit Board Production DIY Kit

10pcs Hall Magnetic Induction Sensor Magnetic Detection Magnetic Pole Resolver North and South Pole Detection Module DIY Kit

500pcs 5mm LED Diode 5 mm Assorted Kit Clear Warm White Green Red Blue UV Yellow Orange Pink F5 DIP DIY Light Emitting Diode Set