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DCH-B122 mydlink Motion Sensor | D-Link
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CQRobot Ocean: 10.525GHz Doppler Effect Microwave Motion Sensor Compatible with Raspberry Pi and Arduino Board. for Industrial, Measurement, Automatic Doors, Sensor Lights, Reversing Radar, etc. : Amazon.it: Fai da te
CCTV Motion Detector Hidden Camera with PIR | MC2M-PIR
SwitchBot | SwitchBot Motion Sensor - Autonomia fino a 3 anni con il Bluetooth LE! | Vincenzocaputo.com