The FlameSpec™ IR3-HD flame detector provides exceptional detection performance of all types of hydrocarbon fires (visible and non-visible).
The detector responds to slow-growing fires as well as fast fire eruptions using improved triple IR (IR3) technology operating in all weather and light conditions with highest immunity to false alarms.
The detector also provides a high-definition (HD) color video output of the monitored area with clear imaging of fire events and personnel at distances up to 100 ft (30 m), allowing responders to know the exact situation before entering the hazardous area. Video and data of events are saved quickly to non-volatile memory for post-incident investigation. The recordings start one minute before detection and continue for up to four minutes.
Highest immunity to false alarms.
Hydrocarbon flame detection. Three wavelengths, in the infrared spectral range of 4.0—5.0 μm, with clear separation.
Each sensor has the same field of view to further improve false alarm immunity.
HD, or composite, video output with automatic HD video recording of events.
Ultra-fast detection within 40 milliseconds for fireballs or explosions.
Fast flame detection, <1.5 seconds for standard fire up to 30 m. Option for <0.5 seconds (in compliance with NFPA 33) is available.
Optimized option for aircraft hangars, helipads, & truck loading racks available, see FLS-IR3-HD-CO2L data sheet.
Detects up to 262 ft (80 m) for a 1 ft2 (0.1 m2) n-heptane fire.
5 selectable sensitivity levels.
Universal outputs, 3- and 4- wire, 4—20 mA sink / source, Fire, Auxiliary, and Fault relays. RS485 port using Modbus RTU.
Event logger: Alarms, faults & videos are logged to non-volatile memory.
Built-in-Test (BIT) – Automatic and manual self-test of window cleanliness and overall detector operation.
HART® 7, for configuration and maintenance - option available.
Dirty optics warning for preventive maintenance needs.
Window heater to avoid condensation and icing.
Stainless steel tilt mount with horizontal and vertical adjustment.
Marine approval - MED & DNV Type approval available on request.
Functional safety - SIL 2 capable option available.
![]()
Maintenance and refueling zones are complex environments where safety cannot be compromised. We address the unique challenges of the hangar:
The Risk: Low-frequency but high-consequence fire events fueled by hydrocarbons.
The Interference: Constant "noise" from diesel vehicles, engine exhaust, and maintenance work (welding/sanding).
The Solution: Advanced spectral analysis that distinguishes between a fire and a false alarm, protecting your airframes from both fire and accidental foam damage.
Different areas of aircraft facilities require tailored detection strategies:
Utilize IR3-CO2L flame detector with integrated video camera for high-speed detection and maximum false alarm rejection. The Hangars require large area coverage that can be matched to suppression zones. With five sensitivity settings and the unique FlameView accessory, the FlameSpec™ range of detectors can be set to provide large-area coverage that meets the requirements for suppression.
Depending on the operation different fuel types may be used where the detection ranges can vary. It is critical that flame detectors are selected based on their ability to provide coverage regardless of fuel or risk. Third-party testing according to FM 3260 confirms FGD detectors' ability not only to detect but gives the fire size and detection range in feet and meters.
Operational areas where exhaust from jet engines is a regular false alarm risk. FGD® FlameSpec™ CO2L detectors have been rigorously tested in real environments for their ability to operate continuously even when exposed to military aircraft jets entering, shutting down, and starting up in Hardened Aircraft Shelters (HAS).
The FlameSpec™ range is rigorously tested and certified to meet global safety, performance, and reliability standards.
Its comprehensive range of certifications ensures compliance with international regulations for hazardous environments, making it a trusted solution for high-stakes applications. From explosion-proof approvals to functional safety and ingress protection, these certifications validate the detector's ability to perform under the most demanding industrial conditions.
ATEX / IECEx Zone 1 and 2 certified, cFMu Class 1 Div 1
FM3260 and EN54-10, performance approval
NFPA 409 Annex C