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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.

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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.

Sites BESS

Surveillance intérieure et extérieure 24 h/24 et 7 j/7 des conteneurs et des boîtiers ; la couche de détection requise par les conceptions NFPA 855.

Centres de données

Salles de batteries ASI, PDU et infrastructure électrique, où une défaillance est mesurable dans la chaleur bien avant qu’elle ne produise de la fumée.

Fonderie

Lignes de processus, salles électriques et stockage de produits où l’accumulation de chaleur précède l’inflammation.

Champs solaires et toitures

Détection des points chauds au niveau de l’onduleur, du boîtier de raccordement et du panneau sur les installations de terrain et de toit.

Industrie lourde

Produits forestiers, pâte et papier, métaux et autres sites industriels lourds où la poussière, le flux d’air et les structures ouvertes neutralisent la détection conventionnelle.

Entreposage et racks à baie

Couverture étendue du stockage en rack et des systèmes de stockage et de récupération automatisés où la détection au plafond est lente à répondre.

Déchets et recyclage

Des planchers basculants, des soutes, des convoyeurs et un stockage de balles, avec des alarmes sur le point chaud plutôt que sur le panache de fumée.

Sous-stations électriques

Là où l’exposition extérieure, le flux d’air et les grandes zones ouvertes peuvent retarder la présence de fumée ou de chaleur dans les détecteurs traditionnels, limitant ainsi l’avertissement précoce des problèmes d’équipement en développement.

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.