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FG-1025 Family - Technical Note
Technical Note
FG-1025 Family
Glassbreak Detectors
Overview
This Technical Note is intended to explain in detail the technical advancement of the new FG-
1025 family of glassbreak detectors over the previous FG-730 family of products. Further, it is
intended to highlight the benefits of those enhancements to the customer. This Technical Note is
not confidential, and can therefore be provided to customers who have a technical interest in our
new FG-1025 family of glassbreak detectors.
Market Demand
The FlexGuard
®
FG-730 is the world’s best selling acoustic glassbreak detector, with well over
one million detectors installed worldwide. This popularity was achieved due to the detector’s
excellent glass break detection and false alarm immunity.
However, since the introduction of the FG-730, the market for glassbreak detectors has changed.
The market now demands detectors without sensitivity adjustments for ease of installation, detec-
tors which detect even the most minimal quiet breaks, and detectors with outstanding false alarm
immunity. Our new FG-1025 family meets these requirements.
Theory of Operation
Using a dual channel design, the FG-730 uses two technologies: listening for the acoustic sound
of glass breaking, and sensing the “flex” pressure generated when glass breaks. Signals are com-
pared to set thresholds in the detector, and the detector alarms if the thresholds are crossed. The
significant technical breakthrough of the FG-730 was sensing the flex, thus the name FlexGuard.
The FG-1025 family is based on the same flex/audio principle of dual technology sensing, but
with far more signal processing using an on-board microcontroller.
FlexGuard Signal Processing Design
C&K is a registered trademark of C&K Components, Inc. FlexGuard and IntelliSense are registered trademarks of IntelliSense Security Systems, Inc..
FG-1025
FG-1025Z
FG-1025R
