Key Features
- Two-way communication.
- Advanced sabotage protection.
- Block encryption featuring a dynamic key.
- Instant notifications.
- Remote control and configuration in Ajax apps.
Overview
The Ajax EN54 FireProtect Sounder Jeweller is an EN 54 certified wireless fire alarm sounder designed for use within Ajax EN54 fire alarm systems. It provides clear audible indication during fire events and system alerts, supporting effective occupant notification across commercial and regulated environments.
The device communicates using the Jeweller radio protocol, offering encrypted, two-way communication with continuous supervision. Battery operation allows flexible installation without local power supplies, while system diagnostics monitor device status, signal strength and battery condition.
This sounder is intended for use as part of a compliant Ajax EN54 installation and must be configured and commissioned in line with system design requirements.
Advanced Enclosure Design
The enclosure is designed for durability and consistent acoustic performance in commercial environments. It incorporates tamper protection to detect unauthorised removal or opening, allowing the system to report interference events to the control equipment. The housing supports secure mounting, reliable sound dispersion, and straightforward access for commissioning and maintenance.
Precise Sound Indication
The AJAX EN54 FireProtect Sounder Jeweller delivers a controlled and consistent audible output designed to meet EN 54-3 requirements. Sound patterns and activation are managed by the Ajax EN54 system, ensuring clear alarm indication while maintaining synchronisation across multiple devices
Approvals
The Ajax EN54 FireProtect Sounder Jeweller is compliant with EN 54-3 for audible fire alarm devices and EN 54-25 for wireless fire detection components. It is CE and UKCA marked and supported by third-party certification from Dedal, confirming suitability for use within regulated EN54 fire alarm systems.
Tech Specs
| Frequency bands | 866.0 – 866.5 MHz868.0 – 868.6 MHz868.7 – 869.2 MHz905.0 – 926.5 MHz915.85 – 926.5 MHz921.0 – 922.0 MHz |
| Maximum Effective Radiated Power (ERP) | 20mW |
| Radio Signal Modulation | GFSK |
| Radio Communication Range | 1700m |
| Alarm Type | Acoustic |
| Sound Volume | 100dB/m |
| Sound Pattern | 32 tones |
| Connection Loss Detection | 36s |
| Battery | 4 × CR123A |
| Recommended Battery Type | Huiderui CR123A; 3 V; 1,600 mAh, LiMnO₂ |
| Calculated Battery Life | 5 years |
| Dimensions (H x W x D) | 145mm × 145mm × 51mm |
| Weight | 527g |
| Operating Temperature Range | –10 °C to +60 °C |
| Operating Humidity | 80% |
| Protection Class | IP54 |
| Flammability Rating | UL 94 V-0 |