DSC BV-500 - Motion Detector and Glassbreak Sensor

Despite what the product title "Motion Detector and Glassbreak Sensor" implies, this is ONLY A MOTION SENSOR. This product does not include an acoustic glassbreak sensor feature. (The similar DSC-550GB sense both motion and the sound of breaking glass. This product is not the same!)

i ordered wrong part and couldnt return it because it my mistake it was suppose to be wireless device. not wired. i was to only half od money back so kept it. i balame the way in was shown in ad