The GLASS BREAKAGE ALARM is an effective low cost vibration
alarm that can be used for securing windows
or doors. The glass alarm can also be
used as a personal property alarm
to protect computers, TVs,
stereos, cabinets, etc.
Includes one 12 volt
battery and strong
adhesive tape. Turn the
switch on the side to
the ON position. When
the glass is hit, knocked
or broken by anyone or
anything, the siren will
sound for approximately 30
seconds and before it shuts
off and resets.