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First to UL 2684

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First to UL 2684

How far can it detect?

Detection distance comes down to hot spot size, lens, and pixels on target. Three pixels on the hot spot is the design basis for accurate temperature; the figures below are for a Flir A70.

Custom Zones and Thresholds for the Earliest Reliable Alarm

Alarm logic runs on the camera and is configured to the hazard. Define where to look, what counts as an alarm, and how each rule communicates with the fire alarm control panel or monitoring system, delivering early warning and fire alarm functionality from the same device.

Alarm Types

Choose the detection logic that best matches your application.

🌡

Absolute Threshold

The zone exceeds a set temperature.

↗

Rate of Rise

Temperature climbs faster than a set number of degrees per minute.

Δ

Delta

The zone runs hotter than a reference, such as a neighboring asset or the ambient temperature, by more than a set margin.

◎

Growing Hot Spot

The share of the zone above a temperature grows past a set percentage.

Alarm Zones

Customize monitoring areas and alarm behavior for individual hazards.

▣

Full Coverage or Individual Hazards

A zone can span the entire field of view or be drawn around one asset.

⊘

Inclusion and Exclusion Zones

Watch what matters; ignore heaters, reflective surfaces, or anything that should never trigger.

☰

Stacked Zones with Different Logic

Multiple zones can overlap, each with its own alarm type, setpoint, and output. Full-view zones can give an early supervisory signal at one temperature and a fire alarm at a higher one.

20

Up to 20 Zones per Camera

Each mapped to a dry-contact output or a network alarm.

Three Integration Pathways. One Camera.

One camera, three connections. The fire alarm pathway is the listed one; video and data are supplementary. Video can run through an on-site VMS server or, with no server at ll, through Flir Aura cloud monitoring.

⚠

Fire Alarm

Digital I/O

Alarms to the FACP

Connect the camera to the fire alarm control panel through digital inputs and outputs.

✓ Dry contacts: Alarm, Supervisory, Fault

✓ Listed addressable input modules on the SLC

✓ 24 V DC listed, supervised power

✓ Wiring and programming per FACP manufacturer, NFPA 72, and AHJ

▶

Video Monitoring

ONVIF

Video to the VMS

Stream thermal and visual video to your video management system, or monitor through Flir Aura.

✓ ONVIF Profile S/T: thermal and visual video, overlays, alarm events

✓ Flir Latitude or any ONVIF VMS

✓ No server? Flir Aura cloud provides web-based alarm handling, trending, and mobile alerts

⇄

Data Integration

Modbus TCP

Data and Alarms to SCADA

Share temperature measurements, alarm information, and diagnostics with industrial control systems.

✓ Temperatures, alarm status, event flags, diagnostics

✓ Polled or event-driven

✓ Any Modbus TCP master: SCADA, historian, BMS

Common applications for thermal imaging fire detection

Where the hazard produces heat long before smoke, and where high ceilings, airflow, dust, or outdoor exposure make conventional detection slow or impractical.

Siti BESS

Monitoraggio interno ed esterno 24/7 di container e custodie; i design del livello di rilevamento NFPA 855 lo richiedono.

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Data center

Camere batterie UPS, PDU e infrastrutture elettriche, in cui un guasto è misurabile nel calore molto prima che produca fumo.

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Impianti produttivi

Linee di processo, sale elettriche e stoccaggio dei prodotti in cui l’accumulo di calore precede l’accensione.

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Campi solari e array per tetti

Rilevazione di punti caldi a livello di inverter, box combinatore e pannello in installazioni sul campo e sul tetto.

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Industria pesante

Prodotti forestali, cellulosa e carta, metalli e altri siti industriali pesanti in cui polvere, flusso d'aria e strutture aperte sconfiggono il rilevamento convenzionale.

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Immagazzinamento e racking ad alto carico

Ampia copertura dell'area di stoccaggio dei rack e dei sistemi di stoccaggio e recupero automatizzati in cui il rilevamento montato a soffitto è lento.

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Rifiuti e riciclaggio

Pavimenti inclinati, bunker, nastri trasportatori e stoccaggio di balle, con allarmi sul punto caldo piuttosto che sul pennacchio di fumo.

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Sottostazioni di alimentazione

Nei casi in cui l'esposizione esterna, il flusso d'aria e le grandi aree aperte possono ritardare il raggiungimento di fumo o calore da parte dei rilevatori tradizionali, limitando l'avviso precoce di sviluppo di problemi alle apparecchiature.

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Detect faster. Respond smarter.

Thermal imaging allows you to design a system that detects threats, not just responds to them. FLIR's Axx Series is UL 2684 listed, prescriptive under NFPA 72, and supported by FLIR from layout through commissioning.

Which model is best for my application?

Both models come in three fields of view: 29° for the longest reach, 51° as the general-purpose choice, and 95° for wide coverage at short range. The A70 is built for long-range and wide-area monitoring, giving the best detection at the greatest distance and the highest performance: EV fleet and bus depots, warehouses, large combustible piles, and other large hazards. The A40 is ideal for smaller or individual hazards and room monitoring: hydraulic pump units, pump rooms, electrical gear, battery charging stations. Both carry the same listing, alarm logic, and outputs.

Are alarm thresholds factory-set?

No. Thresholds are configured by the installing contractor at commissioning behind a password-protected interface, documented in the acceptance record, and retested after any change.

What does the listing cover?

The dry-contact alarm, supervisory, and fault outputs. Modbus TCP, MQTT, Ethernet/IP, and ONVIF are supplementary paths for SCADA, BMS, and VMS and are outside the listing.