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WIRELESS HOME SECURITY ALARM SYSTEM - EXTRA DOOR/WINDOW SENSOR Door / Window Contact Sensor Protects doors, windows, and other entrances. Sends a signal to Control Panel or Dialer when contact is broken. Works only with "SC Series" Wirless Home Security Alarm Systems. Add on as many door/window contacts as needed. 12V Alkaline battery included. Up to 100ft range. |
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