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TSV Wireless Driveway Alarm, Home Motion Detector Sensor Security Alert System IP64 Weatherproof Detector for Home Office Store, Up to 920in Connection Range (1Alarm + 1 Detector) - Walmart.com
Amazon.com : 4VWIN Wireless Home Security Driveway Alarm 1 Receiver and 1 PIR Motion Sensor Detector Infrared Alert System Kit : Electronics
4VWIN driveway alarm provides a convenient and economic way to alert you... | eBay