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used

Qolsys IQ Glass-S Encrypted Glass Break Sensor (QS1431-840)

by Qolsys
$72.00
SKU GS-U-3295B

Good Condition, Used, Does Not Have Accessories, Does Not Come in Original Box.

The IQ Glass is specially designed to protect you if an intruder tries to break-in through a window. Using the Qolsys proprietary S-Line encryption technology, this sensor encrypts the signals sent to the IQ Panel while still providing backwards compatibility for legacy 319.5 systems. Triggered by the pitch and frequency of breaking glass, the IQ Glass is effective within 20′ and is activated automatically when you arm your IQ Panel in either “Stay” or “Away” mode. Typically installed on the opposite wall or on the ceiling to allow for better listening ability in large living areas.


  • Encrypted S-Line sensor technology protects signals sent to the IQ Panel while still providing support for legacy 319.5 systems
  • Actively listening for breaking glass frequencies when you are in “stay” or “away” modes
  • Typically installed on the wall opposite the windows needing protection, or on the ceiling in a room with windows on multiple sides
  • Protects widows within line of sight within 20’
This is a used product, so there might be some wear and tear. All used products on our garage sale have been tested for functionality, but it may not look exactly like the product in the picture. Also note that we cannot guarantee this will come with all of its original accessories. For more information about our used products, check out our About Page.