SM-87B is an add-on wireless magnetic door/window sensor for SecurityMan Air-Alarm system. Wireless transmitting distance is up to 450ft (in open area). It includes a 23A 12V alkaline battery which could last up to 2 years.
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Friday, July 17, 2009
SecurityMan SM87B Wireless Door/Window Sensor for AirAlarm Home Security System (Silver) Review
Posted by Sam at 5:02 PM
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