Ajax EN54 Black Heat Detector with Integrated Wireless Siren

Ajax EN54 Black Heat Detector with Integrated Wireless Siren

 

119916.274.BL1 # 119916 | Ajax EN54 FireProtect (Heat) Jeweller is a black rate-of-rise heat detector that combines advanced temperature detection with a built-in 85 dB siren, ensuring timely intervention in the event of a fire. Equipped with a double thermistor and Jeweller radio communication up to 1,700 m, it is easy to install and manage via app. It has a 5-year battery life thanks to the pre-installed CR123A batteries. Certified to EN 54-5 and 54-3, it is ideal for industrial and residential environments.

Technical Data Sheet

Reference: 119916.274.BL1

Brand: Ajax Systems

EAN: 4823114069215

Manufacturer Object ( [id] => 31 [name] => Ajax Systems [description] =>

Born in 2011, Ajax System produces alarm and fire systems with JEWELLER radio protocol, a wireless technolog that allows to connect with a few taps the detectors in the mobile app. The Ajax System security system is easy to install in your apartment, home or office. By choosing Ajax System, you get integrated protection that is easy to manage, tamper-resistant and responds instantly to attacks. Ajax  System devices are easy to be installed: just 15 seconds to connect the control panel to the detectors. They can also support third-party surveillance cameras, making Ajax System a singular security center.

[short_description] =>

Ajax SystemsAjax Systems

The alarm systems by Ajax System use a state-of-the-art wireless technology, thus making the devices very reliable and always connected. Ajax System detectors combine the best components with conceptual design.

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119916.274.BL1 | WIRELESS RATE-OF-RISE HEAT DETECTOR WITH ACOUSTIC SIGNALING DEVICE


Ajax

The Ajax EN54 FireProtect (Heat/Sounder) Jeweller, 119916.274.BL1 , is a black wireless rate-of-rise heat detector that provides reliable fire protection with precise smoke or heat detection and radio transmission up to 1,700 m. Also available with a built-in siren, it is easy to install with SmartBracket and offers up to 5 years of battery life. EN54 certified, it is suitable for residential and professional use thanks to configuration via the Ajax app.

Main specifications:

- Jeweller two-way radio communication up to 1,700 m

- Smoke detection with optical sensor or heat detection with double thermistor

- Built-in siren (Sounder models only) with 32 selectable tones

- Powered by pre-installed CR123A batteries (5-year battery life)

- Easy installation without screws and management via the Ajax app

- EN 54-3, EN 54-5, EN 54-7 certifications (depending on the version)

Further details

✅ Communication :
The system uses Jeweller technology , a two-way radio protocol that guarantees stable and secure communications up to 1,700 m in open fields. The alarm is sent to the control unit (CIE) in less than 3 seconds , while intelligent radio frequency management automatically adjusts power and channel to avoid interference and signal loss .
✅ Dangerous temperature detection :
The device is equipped with two thermistors that accurately detect both sudden increases and fixed temperature thresholds. It is compatible with the A1, A1R, B, BR, BS, C, CR, and S detection modes , which can be configured directly via the Ajax app. This allows for versatile adaptation to different environments and fire scenarios, both in residential and industrial settings.
✅ Alarm announcement :
The "Sounder" models include a built-in 85 dB acoustic device at 1 meter, with 32 selectable tones , which allows you to distinguish the type of emergency. Furthermore, automatic synchronization between devices connected to the same control panel is provided, ensuring simultaneous and uniform alarms throughout the system.
✅ Anti-sabotage protection :
The detector is designed to provide active protection against tampering: any unauthorized removal attempt from the SmartBracket triggers an immediate alert. Furthermore, thanks to the replaceable battery without opening the device and automatic diagnostics via the app, continuous protection is ensured over time.
✅ EN54 Standard:
All models are EN54 certified , compliant with European fire regulations:
  • EN 54-5 for heat detection
  • EN 54-7 for smoke detection
  • EN 54-3 for acoustic alarm devices
Furthermore, they comply with Directive 2014/53/EU (RED) , making them suitable for certified systems and professional installations.

Technical data sheet

119916.274.BL1
Capacity
Communication
Jeweler communication technology Proprietary wireless communication technology to transmit commands, alarms, and events.
Key features:
  • Two-way communication
  • Advanced sabotage protection
  • Block encryption featuring a dynamic key
  • Instant notifications
  • Remote control and configuration in Ajax apps
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.
Dangerous temperature detection
Sensitive element 2 × thermistors
According to the EN 54-5 requirements for heat detectors of Class A1, B, and C with rate-of-rise (R) and static (S) response types.
Heat sensor modes
  • A1, A1R, A1S
  • B, BR, BS
  • C, CR, CS
  • Fixed temperature
For better detection of fire hazards, depending on the installation site of the device. Can be selected in the device settings.
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.
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 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 6 years
Enclosure
Dimensions 124 × 124 × 48 mm
4.87" × 4.87" × 1.90"
Weight 278 g
9.81 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 Black
Complete set EN54 FireProtect (heat/sound) Jeweller
SmartBracket mounting panel
2 × CR123A battery (pre-installed)
Quick start guide
Warranty 24 months
All our products are in conformity with the in force CE normative (read here). To ask for a copy of the certification fill out this form

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