Intermatic Model SP130B. Wireless, door-mounted alarm protects against unauthorized entry. When door (or window) is opened, magnetic sensor switch triggers a loud, piercing 110dB alarm. Programmable keypad code for entry and exit.
Mounts on door.
Chirping low battery indicator.
Instructions included.
Operates on 4 AA batteries (not included).
Others
source by : http://www.allelectronics.com/make-a-store/item/ALM-130/WIRELESS-DOOR-AND-WINDOW-ALARM
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