Safety Technology International, Inc. STI-3610 Wireless Motion-Activated Chime with Receiver 500' Range, Selectable Detection Zone 20' – 42' – – Amazon.com.
Motion Activated Alarm / Chime with two Remotes US Patrol 2 in 1 Motion Sensor Alarm and Chime. Secures your home from intruders! Motion Sensor Alarm .
STI-3610, Wireless Motion-Activated Chime– The Wireless Chime alerts you when someone enters the detection zone. The sensor is weather-sealed for long life .
STI Wireless Chimes greet your visitors with a pleasant chime and lets you know when the door opens, or a person enters the detection zone. All chimes are .
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Wireless Motion-Activated Chime (STI-3610) Mount the motion sensor and plug chime receiver into any electrical outlet within operating range. Alerts when .
The STI-3601 is an additional wireless motion sensor that alerts when someone enters the detection zone. The signal passes through doors, walls and floors .