The Ajax FireProtect Jeweller EN54 Wireless Addressable Heat Detector is a professional wireless fire detection device developed for environments where dependable heat detection is needed without the disruption and limitations of traditional wired installations.

As part of the Ajax EN54 wireless fire alarm range, this addressable heat detector is ideal for commercial buildings, refurbishment projects and sites where cable installation may be difficult, expensive or unsuitable. Its wireless design helps speed up installation while maintaining reliable communication across the fire alarm system, making it well-suited to modern fire safety applications.

The detector uses two thermistors to provide accurate thermal monitoring and is engineered to respond effectively to both flaming fires and rapid rises in temperature. Multiple heat detection classes are supported, including A1, A1R, A1S, B, BR, BS, C, CR, CS and fixed temperature operation, allowing installers to tailor the detector to the specific fire risks and environmental conditions of each protected area.

Powered by Ajax’s Jeweller wireless communication technology, the detector delivers stable long-range connectivity for reliable system performance. It has been designed specifically for use with compatible Ajax EN54 wireless fire alarm systems, helping ensure seamless integration across the wider fire safety network.

The wireless design makes the detector particularly suitable for retrofit projects and buildings where cable routing is restricted or impractical. Compared with traditional wired alternatives, installation can be completed with significantly less disruption, helping reduce labour time and preserve interior finishes.

Configuration, commissioning and ongoing system management can all be carried out through the Ajax app ecosystem, providing a streamlined approach for installers and maintenance teams.

Designed for professional fire alarm applications, the Ajax FireProtect Jeweller EN54 Wireless Addressable Heat Detector offers a flexible and efficient solution where reliable thermal detection, simplified installation and dependable wireless communication are key priorities.

• Wireless addressable heat detector for professional fire alarm systems

• Two thermistors for accurate thermal fire detection

• Detects flaming fires and rapid temperature rise conditions

• Supports A1, A1R, A1S, B, BR, BS, C, CR, CS and fixed temperature modes

• Ajax Jeweller wireless communication technology

• Suitable for retrofit and cable-restricted installations

• Reduced installation disruption compared with wired alternatives

• Streamlined app-based configuration and management

• Designed for compatible Ajax EN54 wireless fire alarm systems