Photo 1 of Wireless Motion Sensor Door Chime: Indoor Motion Detector Alarm Business Entry Doorbell Store Entrance Alert Bell Buzzer (1000Ft Range, 32 Tunes, 5 Level Volume) 2 Sensors 1 Receiver

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Photo 1 of Wireless Motion Sensor Door Chime: Indoor Motion Detector Alarm Business Entry Doorbell Store Entrance Alert Bell Buzzer (1000Ft Range, 32 Tunes, 5 Level Volume) 2 Sensors 1 Receiver