Radio Shack 49-421A owner manual Mounting The Alarm, Selecting a Location

49-421a.fm Page 6 Thursday, August 19, 1999 7:48 AM

MOUNTING THE ALARM

Your alarm is designed for mounting on non-metallic doors and windows only. It uses a magnet to trigger the internal alarm. Mounting on metal surfaces can interfere with proper operation of the magnetic sen- sor.

Selecting a Location

For proper alignment, you must mount the alarm and magnet so the magnet rests with its arrow pointing toward the alarm’s engraved line. Choose a location that lets you install the magnet on a door or window and the alarm immediately next to it on the frame, or vice versa. The distance be- tween the alarm and magnet must be no more than 1/3 inch (8 mm).

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