118600.279.BL1 # 118600 | Ajax EN54 FireProtect (Sounder/VAD) Jeweller , in black , combines a 100 dB audible alarm with 32 selectable tones and high-intensity LED visual signaling, offering a dual mode of warning in the event of a fire. Jeweller's wireless communication ensures reliability up to 1,700 m, while wall or ceiling installation is easy via SmartBracket. Powered by 4 CR123A batteries with a life of up to 5 years, it is fully certified according to the EN 54-3, EN 54-23 and EN 54-25 standards.
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118600.279.BL1 | WIRELESS AUDIBLE WARNING DEVICE WITH A VISUAL WARNING DEVICE (VAD)

The Ajax FireProtect (Sounder/VAD) Jeweler device, 118600.279.BL1 , The black version integrates an audible alarm and high-intensity LED visual signaling in a single wireless module. Thanks to Jeweller technology, it guarantees stable communication up to 1,700 m, quick installation with the SmartBracket bracket, and up to 5 years of battery life. It complies with EN 54-3, EN 54-23, and EN 54-25 standards, ideal for security in public and professional environments .
Main specifications:
- 100 dB acoustic alarm and 32 selectable tones
- Visual LED with synchronization and frequency 0.5 Hz
- Safe and fast Jeweller radio communication
- Powered by 4 CR123A batteries (pre-installed)
- Ceiling or wall installation without disassembly
- EN54 certification for professional fire prevention systems
Further details
Technical data sheet
118600.279.BL1 |
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Capacity | |
Communication | |
Jeweler communication technology | Proprietary wireless communication technology to transmit commands, alarms, and events. Key features:
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Frequency bands | 866.0–866.5 MHz 868.0–868.6 MHz 868.7–869.2 MHz 905.0–926.5 MHz 915.85–926.5 MHz 921.0–922.0 MHz Depends on the sales region. |
Maximum effective radiated power (ERP) | up to 20 mW Automatic power control to reduce power consumption and radio interference. |
Radio signal modulation | GFSK |
Radio communication range | up to 1,700 m up to 5,550 ft Between the CIE and connected devices (in an open space). Maximum range depends on the connected device. |
Encrypted communication | All stored and transmitted data are protected by block encryption featuring a dynamic key. |
Frequency hopping | To prevent radio interference and jamming. |
Key features | |
Alarm type | acoustic and light A sounder and LED frame. |
Sound volume | from 65 to XX dB at a distance of 1 m 3.3 ft Adjusted by a PRO or user with admin rights in an Ajax app. |
Sound pattern | 32 tones |
Flash frequency | 90 ms ON / 1,910 ms OFF (cycle duration: 2,000 ms; frequency: 0.5 Hz) |
Alarm annunciation test | To check the visual alarm signal to ensure fire alarm signals are visible in the premises |
Installation recommendations | The device's recommended installation height is up to 3 m on the ceiling and up to 2.4 m on the wall. The device's recommended installation height is up to 9.8 ft on the ceiling and up to 7.8 ft on the wall The device is designed for outdoor and indoor use |
Sabotage protection | |
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 Jeweler settings |
Power supply | |
Battery | 4 × CR123A Pre-installed |
Tool-free battery replacement | To replace the batteries, open the lids of the battery compartments. |
Reverse polarity protection | Prevents device damage if the batteries are put in incorrectly. |
Recommended battery type | Huiderui CR123A; 3V; 1,600 mAh, LiMnO₂ |
Calculated battery life | up to 5 years In standby mode. up to XX minutes In annunciation mode. |
Enclosure | |
Dimensions | 145 × 145 × 51 mm 5.71" × 5.71" × 2.00" |
Weight | 561 g 1,237 lb |
Operating temperature range | from -10 °C to +50 °C from 14 °F to 122 °F |
Operating humidity | up to 80% |
Protection class | IP54 |
Color | Black |
Complete set | EN54 FireProtect (Sounder/VAD) Jeweller SmartBracket mounting panel 4 × CR123A battery (pre-installed) Quick start guide |
Revision | 1 |
Warranty | 24 months |