119919.276.WH1 # 119919 | Ajax EN54 FireProtect (Smoke/Sounder) Jeweller is a white detector that combines a dual-spectrum optical sensor and a built-in acoustic signaler to detect smoke quickly and accurately. Resistant to dust, insects, and steam, it ensures reliability even in harsh environments. It offers radio communication up to 1,700 m, a battery life of up to 5 years, and easy installation with SmartBracket, ideal for advanced protection without wiring.
LIQUIDACION TOTAL ×
CLEARANCE SALE!
Take advantage of our must-see outing offers.
Discover the promo >>
119919.276.WH1 | WIRELESS SMOKE DETECTOR WITH AUDIBLE SIGNALING DEVICE

The EN54-certified Ajax EN54 FireProtect (Smoke/Sounder) Jeweler, 119919.276.WH1 , offers advanced fire protection thanks to a dual-spectrum optical sensor and built-in siren. It guarantees long battery life, quick, wire-free installation, and wireless communication up to 1,700 m, making it ideal for residential and professional environments.
Main specifications:
- Dual-spectrum optical sensor with anti-false alarm algorithm
- Built-in 85 dB siren with 32 selectable tones
- Battery life up to 5 years with CR123A batteries
- Screwless installation with SmartBracket
- Radio coverage up to 1,700 meters in open field
- Compatible with Ajax app for remote management
Further details
Thanks to the SmartBracket system , installation is simple yet secure: unauthorized removal of the device triggers an alert. The device also monitors battery and connection status. The pre-installed CR123A batteries provide up to 5 years of battery life and can be easily replaced without removing the case .
- EN 54-7: smoke detectors
- EN 54-3: audible signalling devices
- Directive 2014/53/EU (RED)
Technical data sheet
119919.276.WH1 |
|
Capacity | |
Communication | |
Jeweler communication technology | Proprietary wireless communication technology to transmit commands, alarms, and events. Key features:
|
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. |
Smoke detection | |
Sensitive element | dual-spectrum optical sensor Detects smoke based on the size of particles in the air. |
False alarm protection | The device does not respond to water vapor. |
Patented smoke chamber | Protects the smoke sensor from dust, dirt, and insects. |
Alarm annunciation | |
Alarm type | acoustic |
Sound volume | up to 95 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 |
Sound synchronization | An audible alarm is automatically synchronized on all devices with a sounder connected to the same CIE. |
Alarm annunciation test | An audible alarm check to ensure the fire alarm is clearly audible on the premises. |
Installation recommendations | The device is designed for indoor use only. The SmartBracket mounting panel allows the detector to be rotated up to 90° even after installation. |
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 | 2 × 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 |
Enclosure | |
Dimensions | 124 × 124 × 48 mm 4.87" × 4.87" × 1.90" |
Weight | 295 g 10.39 oz |
Operating temperature range | from 0 °C to +50 °C from 32 °F to 122 °F |
Operating humidity | up to 80% |
Protection class | IP21C |
Flammability rating | UL 94 V-0 |
Color | White |
Complete set | EN54 FireProtect (Smoke/Sounder) Jeweller SmartBracket mounting panel 2 × CR123A battery (pre-installed) Quick start guide |
Warranty | 24 months |