Vitrons Plus' fine ear can detect the crash of any glass type and thickness, while ignoring any breakage of non framed glass or other possible sources of false alarms (keys, telephone ringing, air conditioning, etc.). This unit is elegantly designed to blend into any decor. The protected area's acoustics are sampled up to 40,000 times per second through an advanced microprocessor technology. Simple to install, flush mounted, surface mounted, corner mounted or swivel mounted, on any wall or ceiling.