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IntelliSense FG-1025/1025R Glassbreak Detectors

  • Superior False Alarm Immunity
    Digital Signal Processing (DSP) uses an on-board microcontroller with over 1000 lines of software code to instantly digitize sounds into mathematic sequences, distinguishing common false alarms from breaking glass.
  • Field Proven Glassbreak Protection
    As the world's most popular glassbreak detectors, IntelliSense products are field-proven around the globe to accurately detect breaking glass.
  • Installer-Friendly Installations
    Designed with the installer in mind, the detector features a centered wire entry hole, 45º terminals, dip switches and optional mounting spacers.
  • Mount the Detector Anywhere
    Mounts on any wall, in the window frame, or on the ceiling, with no minimum range and a maximum range of 25' (7.6m) to the glass.
  • Fast and Accurate Testing
    Place the detector in test mode remotely from the ground using the hand-held FG-701 Glassbreak Simulator.
  • Easily Verify Detector Operation at Any Time
    A simple clap of the hands will blink the green LED verifying the detector is awake and processing incoming sounds. If at anytime the continuous self test discovers a detector failure, both the red and the green LEDs will flash.
  • Installation Flexibility
    The FG-1025 and FG-1025R detect all types of glass with no loss of range.


Glass Type/Thickness
Minimum size for all glass types is 11" x 11" (28cm x 28 cm) square; glass must be framed in the wall of the room or mounted in a barrier of 36" (.9m) minimum width.

Type Min. Thickness Max. Thickness
Plate 3/32" (2.4 mm) 1/4" (6.4 mm)
Tempered 1/8" (3.2 mm) 1/4" (6.4 mm)
Laminated * 1/8" (3.2 mm) 9/16" (14.3 mm)
Wired 1/4" (6.4 mm) 1/4" (6.4 mm)
Coated ** 1/8" (3.2 mm) 1/4" (6.4 mm)
Sealed insulating * 1/8" (3.2 mm) 1/4" (3.2 mm)


FlexGuard® Glassbreak Simulator/Tester
The sound of breaking glass is digitally simulated by the FG-701. The FG-701 is compatible for testing all C&K glassbreak detectors. C&K highly recommends testing glassbreak detectors before final installation.