Honeywell SS4-A2

Multi-Spectrum Digital Electro-Optical Fire Detector

Condition: New
Brand: Honeywell
Status: Obsolete
SKU: 76258
Manufacturer Part #: SS4-A2
Note: No replacement available at this time.


The Model SS4-A/-A2 Optical Fire/Flame Detectors are fast-reacting (within 5 seconds), digital, configurable, computerized, “smart” units. This Detector has sensitivity to Type A, B, and C flaming fires. Detectors of this design process Ultraviolet (UV), Wide band Infrared (IR), and Visible (VIS) spectral ranges from ruggedized Solar-blind UV, “Quantum-Effect” IR, and visible sensors correspondingly. They are equipped with SRL-BIT (Built-In- Test) for optical “through the lens” of both the sensors and lens. The Model SS4-A/-A2 UV, IR, and VIS Fire Detectors have false alarm immunity, and adjustable alarm range between 15 and 60 feet for a one square foot gasoline pan fire with a 120-degree (± 60 degrees from the axis) conical field of view. Their microprocessor-based algorithms (FirePic, SnapShot, and Tri-Mode Plot) assure time programmable alarm verification, Fire Signature Analysis, and compatibility with standard approved fire alarm panels.

The Detector also has the flexibility to be re-configured in the field. Its installation is simple, and operation straight forward due to the built-in self-testing feature. Therefore, the maintenance consists mainly in keeping the Detector window lens clean and performing periodic testing required by the manufacturer of the Fire Control and Suppression System.

Additional information

Weight 4 lbs

Honeywell International




Unit of Measurement

EA (Each)

Production Status



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Multi-Spectrum Digital Electro-Optical Fire Detector


Honeywell - Installation Guide and Operating Manual