The IQ Glass adds an extra level of perimeter defense to your door and window sensors. Triggered by the pitch and frequency of breaking glass, this glassbreak features pattern-recognition technology for superior detection and false alarm immunity.



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QS1431-840 Glassbreak Detector Guide

Get started with your new glassbreak detector.

How to Program the QS1431-840 to the IQ Panel 2

View instructions for connecting a glassbreak detector to your panel.

QS1431-840—Battery Replacement

View instructions for replacing your glassbreak detector's batteries.

QS1431-840—Tamper Error

Learn how to fix a sensor tamper error.

QS1431-840—Resolving a Malfunction

View instructions for resolving a sensor malfunction.