IntelliSense FG-1625 Glassbreak Detector


FlexCore™ Signal Processor – The FlexCore Signal Processor is an Application-Specific Integrated Circuit (ASIC), which processes sound data in parallel rather than sequentially for faster, more accurate detection decisions. The combination of proven FlexGuard™ performance with the speed of FlexCore processing provides unmatched false alarm immunity without compromising detection.



Easy Installation and Setup
IntelliSense’s patented technology allows remote activation of Test Mode (with simulator). The FG-1625 has a centered wire entry hole, 45º terminal blocks, and EOL terminals. A hand-clap feature verifies that the detector is functioning.

  • Selectable Sensitivity
    Two dip switches on the FG-1625 make it easy to set the sensitivity to match the acoustics of the room. Four different sensitivity levels are available, ranging from very low to high. The range can then be verified remotely with the FlexGuard FG-701 Glassbreak Simulator.
  • 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′ (7.6 m) to the glass.
  • Covers All Glass Types
    The FG-1625 works on all glass types, including plate, tempered, laminated, wired, film-coated, and sealed insulating glass.
  • Multiple Domain Signal Analysis
    The FG-1625 performs Multiple Domain Signal Analysis in which time, frequency and amplitude characteristics are evaluated for signal qualification. This enables the detector to accurately discriminate false alarms from true glassbreak events.
  • Enclosed PC Board
    The PCB is protected from potential damage during installation.
  • Patented Remote Test Mode
    The Patented Remote Test Mode can enabled or disable the indicator LEDs using the FG-701Glassbreak Simulator. The unit automatically resets from Test Mode in five minutes.
  • Mounting Locations
    The FG-1625 can be mounted on the ceiling, opposite wall, adjoining wall, or the same wall as the glass.


  • Physical Dimensions:
    White high impact ABS plastic housing
    3 7/8″ H x 2 2/5″ W x 7/8″ D
    (98 mm x 62 mm x 21.8 mm)
  • Weight:
    Product Only: 3.2 oz (90g)
    Pkgd Product: 4.1 oz (116g)
  • Range:
    25′ (7.6 m) maximum, omnidirectional. Range is adjustable; no minimum range
  • Alarm Relay:
    FG-1625: Form A, 125mA max, 25VDC max
    Alarm Duration:
    Five seconds (unaffected by alarm LED latching)
  • ESD Immunity:
    10kV discharges of either polarity to exposed surfaces
  • Power Requirements:
    6 – 18VDC, 12mA typical at 12VDC; 22mA max (Latched LED)
    AC ripple: 4V peak-to-peak at nominal 12VDC
  • RFI Immunity:
    30V/m, 10MHz – 1000MHz
  • Operating Temperature:
    14º to 122º F (-10º to 50º C)
    Storage: -4º to 122º F (-20º to 50º C)
  • Approvals and Listings:
    FCC and IC verified
    UL Listed
    ULC Listed
  • Glass Type/Thickness
    Type* Minimum Maximum
    Plate3a 2.4 mm (3/32″) 10 mm (3/8″)
    Tempered 3 mm (1/8″) 10 mm (3/8″)
    Laminated 3 mm (1/8″) 14 mm (9/16″)
    Wired 6 mm (1/4″) 6 mm (1/4″)
    Coated2, 3b 3 mm (1/8″) 6.4 mm (1/4″)
    Sealed 3 mm (1/8″) 6 mm (1/4″)
    Insulating1, 3b (Maximum overall 7/16″)

    * Minimum size for all types is 28 cm (11″) square; glass must be framed in the wall or mounted in a barrier at least 0.9m (36″) wide.

    1 Protected only if both plates of the unit are broken.

    2 Coated glass with security films, including films for solar protection, up to 12 mil. thick may be used. Film Technologies International, Inc.’s GLASS-GARD™ GGLL 1200 has been evaluated with this product by Underwriters Laboratories, Inc. at the request of IntelliSense.

    3 In compliance with Underwriters Laboratories of Canada’s Standard for Intrusion Detection Units

    3a Plate glass 3mm to 10mm can be used.

    3b ULC recognizes a maximum range for protecting sealed insulated glass and coated glass of 12.5 ft. (3.8 m).

    Note:The FG-1625 detects shattering of framed glass by direct impact. It may not consistently detect breakage by blows that only crack the glass, by high velocity projectiles such as bullets, or glass broken without an impact.

Additional Information
Weight .11 lbs