On the glass Shock Sensor

Sets a new standard for surface glass-break detection.
This attractive, functional designed combines a highly sensitive piezo-electric shock sensor with an advance signal processor to provide AMSECO quality and reliability.

Features:
Two Wire Sensor, Draws No Power From Loop
Mounts in any Direction or Angle
Non-polarity Circuit
10 Ft Radius Coverage
No Adjustments Necessary
Water-Proof Housing