Protect commercial spaces with the Ajax EN54 FireProtect (Heat/Sounder) Jeweller — a cutting-edge wireless addressable heat detector combined with a powerful fire alarm sounder. Certified to stringent EN 54 standards (EN 54-5 for heat detection, EN 54-3 for audible alarms, EN 54-25 for wireless components, and BOSEC approved), this device ensures professional-grade fire safety in offices, retail environments, municipal buildings, and more.

Featuring dual high-precision thermistors, it accurately detects dangerous temperature increases — triggering on rate-of-rise or static thresholds in selectable Class A1, B, C modes (compliant options: A1R, A1S, BR, BS, CR, CS). Upon alarm, the integrated sounder activates with up to 95 dB volume (adjustable) and 32 tone options, synchronizing instantly across connected devices for clear, unmistakable evacuation alerts — often within seconds via Ajax's advanced Jeweller protocol.

Installation is remarkably simple: no wiring required, just mount on the included SmartBracket (with 90° rotation for perfect positioning), scan the QR code in the Ajax app, and assign to zones/rooms. The device communicates securely over Jeweller radio technology with up to 5,550 ft range in open space, frequency hopping for interference resistance, encryption, and anti-jamming protection. Battery-powered with 2 × CR123A (pre-installed, up to 5 years life), it sends low-battery warnings well in advance and supports tool-free replacement.

Additional safeguards include tamper protection (alerts on removal), automatic self-diagnostics, connection loss detection, and full integration into the Ajax ecosystem for unified management of fire, intrusion, video, and automation. With IP21C protection, durable UL 94 V-0 enclosure, and operating from 32°F to 122°F, it's built for reliable 24/7 performance in indoor environments.

Choose Ajax EN54 FireProtect (Heat/Sounder) Jeweller for fast deployment, minimal disruption, scalable coverage, and certified compliance that meets commercial fire safety demands.