Well.. depending on how technical you wanna get.. there are alarms with modules that are designed solely to detect the exact sound (wavelength, amplitude, etc) of breaking, or cutting glass..

Its a predominantly pure tone, with little noise, so the module is tuned to only those frequencies...

If it hears it... it goes off..


Ray

'99 CSVT - Silver #222/276 In a constant state of blow-off euphoria.
Originally posted by Kremitthefrog:
I like to wear dresses and use binoculars to watch grandmas across the street.