Proreact®:
Linear Heat Detection

For challenging or hazardous environments where other fire detection methods are unsuitable, Proreact linear heat detectors provide a robust, reliable, and cost-effective solution. Engineered for resilience, our LHD cables ensure precise and continuous heat detection to protect your most critical assets.
ProReact - Linear Heat Detection

Features & Benefits

Explore the key advantages of Proreact linear heat detectors, designed to provide dependable performance in the most demanding conditions where other detectors may struggle.

Which Proreact System is Right for You?

Every environment has unique fire safety requirements, and choosing the correct linear heat detector is critical. To help you decide, we have created a comprehensive comparison guide that outlines the features and benefits of each system in the Proreact range.

Model
Fixed Temperature EN
Fixed Temperature UL
Programmable Temperature
Features
Proreact Fixed Temp EN
Proreact Fixed Temp EN
Proreact Prog
Spacing EN
10.7 m (35 ft)
10.7 m (35 ft)
10.7 m (35 ft)
Spacing UL
10.7 m (35 ft)*
5 m (15 ft)
10.7 m (35 ft)
Spacing FM
9.1 m (30 ft)*
9.1 m (30 ft)*
-
Max Zone Length
1,000 m (3,280 ft)
3,000 m (9,842 ft)
500 m (1,640 ft)
Max Number of Zones per Controller
2
2
1
Alarm Point Distance Locating
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Rate of rise / pre-alarm

 

 

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Interlock mode (Double Knock)
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Coating options

Nylon
Stainless Steel Braid

Nylon
Stainless Steel Braid

Nylon
Stainless Steel Braid

EN Approval
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UL Approval
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FM Approval
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Fixed Temperature EN
Fixed Temperature UL
Programmable Temperature

* Manufacturer recommendation

Types of Linear Heat Detector

A Linear Heat Detector uses a specialist cable to monitor for temperature changes. The cable contains polymers that are sensitive to heat; when a specific temperature is reached, a signal is sent to the fire alarm control panel. There are two main types of system, each suited to different applications.

Fixed Activation Temperature (Fixed)

This system triggers an alarm when a specific, pre-set temperature is reached at any point along the cable. It is a robust and straightforward solution, ideal for applications where the primary risk is a sudden, significant increase in heat.

Option 1
Fixed Activation Temperature UL (Option 1)
Option 2
Fixed Activation Temperature UL (Option 2)
Related products:
Programmable Activation Temperature (Programmable)

This advanced system allows users to program specific alarm temperatures and offers rate-of-rise detection, which triggers an alarm based on a rapid temperature increase. It provides flexibility and is ideal for environments with fluctuating ambient temperatures.

Programmable Activation Temperature

Projected Beam Smoke Detectors

Projected Optical Beam Smoke Detectors use separate Transmitter and Receiver units installed at opposite ends of the protected area, up to 100 metres apart, with the Receiver connected to a ground-level Control Unit. This configuration is less affected by stray reflections, allowing reliable operation in narrower or more complex environments. Compact and architecturally adaptable, these detectors are well-suited to spaces where aesthetics and precision matter.

Related products:

Technical Details:

Dynamic Beam Phasing for Complex Geometries

The Fireray One incorporates Dynamic Beam Phasing, a technology that allows multiple beam detectors to operate in close proximity without causing signal interference. By sequencing the timing of each unit’s light pulses, the system ensures that a detector’s receiver will only recognise the signal from its corresponding emitter. This enables flexible installation in challenging layouts, such as parallel-facing beams in long corridors or irregular configurations in large, open areas, preventing the risk of false alarms caused by cross-talk between units.

Advanced Light Cancellation Technology™

To ensure reliable performance in environments with high ambient light, the Fireray One is equipped with Light Cancellation Technology™. This system actively measures ambient light levels, including direct sunlight and high-intensity artificial lighting, and filters them out from the infrared signal used for smoke detection. This prevents high-lux conditions from saturating the receiver and triggering nuisance alarms, ensuring the detector remains stable and effective in challenging settings like glass atria and modern architectural spaces.

Building Movement and Contamination Compensation

The Fireray One maintains operational integrity through two key automated features. Building Movement Tracking™ uses sophisticated algorithms to continuously monitor for and correct minor shifts in alignment caused by natural building settlement or thermal expansion. Simultaneously, Contamination Compensation adjusts the signal sensitivity to account for the gradual accumulation of dust and dirt on the optical surfaces. Together, these features ensure long-term reliability and significantly reduce the need for manual maintenance interventions.

Trusted by Professionals

"My reputation depends on specifying reliable systems. The technical documentation and support for the Fireray range are second to none, and their performance in the field is proven. It is the only beam detector I recommend."

Consultant/Specifier

"Installation speed and simplicity are key. The Fireray One was installed and aligned by a single engineer, which saved us significant time and cost on the project. A truly excellent product."

Installation Engineer

"We manage a large, historic property where aesthetics are as important as safety. The compact design of the Fireray system provided effective fire detection without compromising the building's character."

Facility Manager

"Our customers trust us to provide high-quality, reliable fire detection products. FFE's Fireray is a strong seller with excellent brand recognition, backed by a partnership we can count on."

Distributor

"Integrating Fireray into our wider building management system was seamless. The reliability and low false alarm rate are critical for our clients' complex industrial sites."

Partner/System Integrator

Become an Expert in FFE's
Specialist Linear Heat Detection Solutions

Our FFE Academy offers comprehensive training on all our products.
Enhance your knowledge and skills with our expert-led courses.

Need a Robust Solution
for Heat Detection?

Contact us today to discuss your requirements and find out how our specialist linear heat detector products can provide a simple, reliable, and effective solution for your building.

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