Honeywell FG1625F FlexGuard Flush-Mount Glassbreak Detector

The Honeywell Home FG1625F FlexGuard Flush-Mount Glassbreak Detector is a professional hardwired glassbreak detector designed for discreet installation in standard single-gang electrical boxes. With a 25 ft (7.6 m) maximum detection range, selectable sensitivity and Honeywell FlexCore signal processing, the FG1625F provides reliable glassbreak detection while allowing the detector to be installed flush with the wall or ceiling.

The FG1625F uses Multiple Domain Signal Analysis to evaluate time, frequency and amplitude characteristics of detected sounds. This processing helps the detector distinguish genuine glassbreak signals from unwanted sounds. The unit provides four adjustable sensitivity levels so the installer can compensate for the acoustic characteristics of the installation area.

Designed for fast installation, the Honeywell FG1625F fits a standard single-gang electrical box and can be mounted on a wall or ceiling. The detector supports a maximum range of 25 feet with no minimum range and can be positioned on the same wall as the glass, an adjoining wall, the opposite wall, or the ceiling.

Key Features of the Honeywell FG1625F

• FlexCore Signal Processor: Processes sound data for fast and accurate glassbreak detection decisions.
• 25 ft Maximum Range: Provides omnidirectional coverage up to 25 feet (7.6 m) from the protected glass.
• Flush-Mount Design: Designed for discreet installation in standard single-gang electrical boxes.
• Four Sensitivity Levels: Selectable sensitivity settings allow adjustment for different room acoustics.
• Multiple Domain Signal Analysis: Evaluates time, frequency and amplitude characteristics to help distinguish glassbreak events from unwanted sounds.
• Wall or Ceiling Mounting: Can be installed on the ceiling, opposite wall, adjoining wall or the same wall as the glass.
• No Minimum Detection Range: The detector can be positioned without a specified minimum distance from the protected glass.
• Multiple Glass Types: Designed for plate, tempered, laminated, wired, film-coated and sealed insulating glass.
• Remote Test Mode: The FG-701 Glassbreak Simulator can be used to remotely activate or deactivate the detector's test mode.
• Hand-Clap Power Test: A hand-clap feature can be used to verify detector operation.
• Protected PCB: The printed circuit board is enclosed to help protect it during installation.
• Professional Installation: Designed for integration into professionally installed security systems.

FlexCore and Multiple Domain Signal Analysis

The Honeywell FG1625F combines FlexGuard detection technology with a FlexCore signal processor. The processing system evaluates sound characteristics across multiple domains, including time, frequency and amplitude, to qualify detected signals.

This approach helps the FG1625F provide responsive glassbreak detection while improving immunity to sounds that do not match the characteristics of a genuine glassbreak event.

Flush-Mount Installation

The FG1625F is specifically designed for flush-mount installation and fits a standard single-gang electrical box. Its compact faceplate provides a clean, low-profile installation compared with conventional surface-mounted glassbreak detectors.

The detector may be installed on the same wall as the glass, an adjoining wall, the opposite wall or the ceiling. The maximum specified range is 25 ft (7.6 m), with no minimum range requirement.

For installations requiring a double-gang electrical box, Honeywell documentation identifies the FG-1525FD as the corresponding double-gang version.

Glass Type Compatibility

The Honeywell FG1625F is designed to operate with a variety of glass types, including:

• Plate glass
• Tempered glass
• Laminated glass
• Wired glass
• Film-coated glass
• Sealed insulating glass

FG-701 Glassbreak Simulator Compatibility

Detector operation and detection range can be verified using the Honeywell FG-701 FlexGuard Glassbreak Simulator. The FG1625F supports remote test functionality, allowing installers to place the detector into Test Mode and verify operation during system setup.

Honeywell FG1625F Specifications

Honeywell FG1625F Applications

The FG1625F is suitable for professionally installed security systems where flush-mounted glassbreak detection is preferred. Its single-gang electrical-box design makes it particularly useful for installations requiring a discreet detector appearance.

• Commercial security systems
• Residential security systems
• Office installations
• Retail and business locations
• Rooms with framed glass
• Installations requiring flush-mounted security sensors
• Single-gang electrical-box security sensor installations

Why Choose the Honeywell FG1625F?

The Honeywell FG1625F FlexGuard combines a discreet flush-mount form factor with advanced sound analysis, selectable sensitivity and a 25-foot detection range. Its compatibility with standard single-gang electrical boxes makes it a practical choice for professional security installations where appearance and installation flexibility are important.

The FG1625F also provides remote test functionality through the FG-701 Glassbreak Simulator, helping installers verify detector operation and range during commissioning.

Related Honeywell FlexGuard Glassbreak Detectors

• FG1625 – Standard Honeywell FlexGuard glassbreak detector with 25 ft range.
• FG1625SN – FlexGuard V-Plex addressable glassbreak detector with 25 ft range.
• FG1625RFM – FlexGuard round flush-mount glassbreak detector with 25 ft range.
• FG-701 – FlexGuard glassbreak simulator/tester.