Bell & Howell Sonic Alarm System is Great for Doors, Windows and Cabinets and Sliding Doors.

It is Simple to Install, No Tools needed.

 

Includes: 4 Alarm & Magnet Sets (Batteries included).

 

Features: Alarm, Magnetic Sensor Technology, Settings (Chime, Off, Alarm), Battery compartment (Uses 1.5V LR44 cell batteries included).

 

How it works: When a guest attempts to enter your home by opening the door, a pleasant chime will announce the persons arrival. The CHIME setting can also be used as a warning if young children have opened the door to the basement or medicine cabinet.

When the switch is in the ALARM position, if a door or window is opened, the alarm will sound. The alarm wills top once the door or window is closed.

To turn the unit Off, simply return the switch to the OFF position.