Doberman SE-0109 Entry Defense. Silver/black
- The frontline of home security
- Triggered when protected door/window is opened
- High quality, resillent material
- Easy battery replacement
- Low-cost solution to security.
The Entry Defense is doberman's most basic unit. It is easy to operate, effective and loud. Using two magnets to form an electrical circuit, the opening of a protected window or door breaks this connection and automatically alerts you of an intruder.
Source: http://www.pluginalarm.com/2011/04/26/doberman-se-0109-entry-defense-silverblack/
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