Ajax EN54 119921 FireProtect (Smoke) - Wireless Point Smoke Detector WHITE
Ajax EN54Ajax EN54 Fire Protection 119921 FireProtect (Smoke) - Wireless Point Smoke Detector WHITE | netviewcctv.co.uk
Wireless addressable point smoke detector
EN54Ajax EN54 Fire Protection FireProtect Jeweller detectors combine certified reliability with effortless installation. This wireless series includes addressable point smoke and heat detectors, some of them combined with built-in fireAjax Fire Alarm vs Intruder Alarm: UK Compliance for Combined Systems alarm sounders. Each detector provides best-in-class detection accuracy thanks to Ajax's patented smoke chamber with a dual-spectrum optical sensor and two accurate thermistors. With built-in communicators, long battery life, and stable long-range radio communication, the devices are ready for different-scale projects. No need to open the enclosure or run cables - installation and configuration take just minutes via Ajax apps. Early service notifications and automated maintenance reports via Ajax PRO Desktop ensure the system stays easy to support for years.
- Two-way communication
- Advanced sabotage protection
- Block encryption featuring a dynamic key
- Instant notifications
- Remote control and configuration in Ajax apps
- LED indication: red, yellow, green
- Tamper button: Fault notification when an attempt is made to remove the device from the mounting panel
- Lock for SmartBracket: to secure the device on the SmartBracket mounting panel. When locked, the lock secures the device and prevents it from being removed without a special tool
- Protection against spoofing: device authentication
- Connection loss detection: after 36 s. Detection time depends on Jeweller settings
Ajax Systems Product Information Page : Ajax EN54 FireProtect Jeweller detectors Product Information
Ajax Systems Product Technical Specifications : Ajax EN54 FireProtect (Smoke) Jeweller Technical Specifications
Ajax Fire HubAjax Fire Hub Jeweller EN54 — UK Installer Guide Jeweller — UK Installer Guide
Spec, sizing, commissioning and the full Ajax Jeweller fireAjax Fire Alarm vs Intruder Alarm: UK Compliance for Combined Systems ecosystem (Hub, ReX, FireProtect, manual call points) for UK BS 5839-1 / EN54Ajax EN54 Fire Protection installs.
Ajax EN54 FireProtect (Smoke) Jeweller – Wireless Point Smoke Detector
The Ajax EN54 FireProtect (Smoke) Jeweller is a wireless addressable point smoke detector featuring Ajax's patented smoke chamber technology. Certified to EN 54 standards (EN 54-7/EN 54-12 and EN 54-25), this detector delivers industry-leading detection accuracy while virtually eliminating false alarms – a common frustration in commercial fire safety installations.
Patented Smoke Chamber Technology
At the core of this detector is Ajax's patented smoke chamber equipped with a dual-spectrum optical sensor. Blue and infrared LEDs emit light at different wavelengths, enabling the detector to analyse the size of volatile particles inside the chamber and accurately distinguish real smoke from dust, steam, or vapour. The chamber design also physically prevents non-volatile particles from reaching the sensor's field of view, adding an extra layer of false alarm protection.
HazeFlow 2 Algorithm
Ajax's proprietary HazeFlow 2 software algorithm provides an additional digital safeguard against false alarms. When particles are detected, the algorithm analyses and compares data from the dual-spectrum sensor against known smoke patterns before confirming an alarm. This intelligent processing ensures the detector responds instantly to genuine fire situations while ignoring environmental interference.
Reliable Wireless Operation
The detector communicates via the encrypted Jeweller radio protocol with a range of up to 1,700 metres in open space. Two-way communication ensures alarm delivery is confirmed, while automatic frequency hopping protects against interference. The detector operates 24/7 regardless of the security system's mode and is protected by dual tamper buttons – one detecting removal from the SmartBracket and another monitoring the smoke chamber lid.
Long Life & Easy Maintenance
Two pre-installed CR123A batteries deliver up to 6 years of maintenance-free operation. The detector is compatible with Solo 332 and other popular smoke aerosols for routine testing. Battery replacement is quick and tool-free via accessible covers.
What's in the Box
EN54 FireProtect (Smoke) Jeweller, SmartBracket mounting panel, 2 × CR123A batteries (pre-installed), installation kit, and quick start guide. Available in White or Black.





