How It Works - Glass Break
Written by Naomi Ramirez
Updated at August 4th, 2025
Table of Contents
Glass Break detectors use a microphone to hear certain sound frequencies emitted by glass when it breaks, cracks, or shatters. For this reason, we do NOT recommend installing this sensor in the hallway.
Glass Break FAQ
These sensors have a 15ft unobstructed hearing range. We recommend their use:
- In areas with a high concentration of glass doors and windows
- For windows that do not open
- For roll-out windows with a crank handle
Test Mode
You can place your glass break detector in test mode by pressing and holding the button on the side of the sensor for 3 seconds.
Light Indicators
