Breaking a window is one of the easiest and most common ways for an intruder to enter a home or business. To help protect against this type of intrusion, a WLS922L-433 Glassbreak Detector is indispensable. "Smart" enough to distinguish the sound of breaking glass from other common sounds found in homes and businesses, the detector features high-performance microphone using Dynamic Signal Processing and can determine all types of breaking framed glass (plate, float, tempered, wired and laminated). Moreover, the WLS922L-433 is provided with an installer selectable Dip Switch with 2 different levels of detection that allow optimizing false alarm immunity for certain acoustic environments. All these features make WLS922L-433 Glassbreak Detector a highly reliable and must-have security constituent for your home and business.