Sensis:
Specialist aspirating smoke detection

Very Early Warning Smoke Detection

Detects smoke in its earliest stages, providing maximum response time.

High-Power Blue LED Technology

Increased sensitivity to the smallest smoke particles, delivering faster fire detection than traditional IR systems.

Smart Smoke Level (SSL) Environmental Learning

Continuously adapts to dust and changing environmental conditions, reducing nuisance alarms.

Wide-Area, Multi-Pipe Coverage

Protects compact to large, complex spaces with reliable early smoke detection.

Model	Azure 500s	Azure 2000s	Indigo CSD-H	Cobalt HM1	Cobalt HM2
Product
Area Coverage	1860 m2	2000 m2	100 m2	1600 m2	2000 m2
Alarm Sensitivity Range	0.005~20% obs/m	0.005~20% obs/m	0.1~12.5% obs/m	0.01-20% obs/m	0.01-20% obs/m
Max No. Pipes	1	4	1	1	2
Max Pipe Length (Linear/Branch)	100/240 m	400/960 m	30/40 m	105/260 m	105/260 m (x2)
Max Sampling Hole (Class A/B/C)	30/60/60	40/60/100	2/4/4	8/16/30	16/32/64
Pipe Addressability		Address displayed on S2000/4A 16 zone relays S2000/4A16
Smart Smoke Level Monitoring
Relay Outputs	7	7	2	2	4
No. of Aspirators	1	4	1	1	2
3-in-1 Display
Optional Zone Relays		16 in Sensis 2000/4A16		4 relays (configurable)	8 relays (configurable)
Event Log
EN Approved			Pending	Pending	Pending
FM Approved	Pending	Pending	Pending	Pending	Pending
	Learn more	Learn more	Coming soon	Coming soon	Coming soon

Azure 500s

Azure 2000s

Indigo CSD-H

Cobalt HM1

Cobalt HM2

Aspirating Smoke Detectors (ASD)

An aspirating smoke detector (ASD) is a highly sensitive fire detection system that continuously draws in air samples from the protected area through a network of pipes. The air is passed through a detection chamber, where sophisticated sensors check for even the smallest traces of smoke. Unlike traditional spot detectors that wait for smoke to reach them, ASDs actively “sample” the environment, making them capable of detecting fires at a very early, often invisible stage. They are commonly used in mission-critical or challenging environments such as data centres, clean rooms, cold stores, and warehouses—where fast, reliable detection and reduced false alarms are essential.

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.

Learn more

Cabinet Smoke Detectors (CSD)

A cabinet smoke detector takes aspirating detection a step further by protecting equipment right at the source. Unlike room-level detectors that only sense smoke once it escapes into the wider environment, a cabinet unit draws air samples directly from inside electrical or server cabinets. This means it can identify overheating or smouldering components long before room sensors would react. For installers and operators, it offers targeted protection, faster warning times, and peace of mind that critical assets are safeguarded without adding complexity to the wider fire system.

"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

DATASHEET

Sensis Azure 500s Datasheet

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BROCHURE

Sensis Azure 2000s User Guide

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WEBINAR

Live sessions on specialist detection, installation, standards and best practices

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