Ajax EN54 FireProtect (Heat) Jeweller White – Wireless Heat Detector

Ajax EN54 FireProtect (Heat) Jeweller White – Wireless Heat Detector

 

119917.273.WH1 # 119917 | Ajax EN54 FireProtect (Heat) Jeweller is a white rate-of-rise heat detector that accurately detects fires using two built-in thermistors, identifying sudden increases in temperature. Certified to EN54, it offers stable radio communication up to 1,700 m, easy installation with SmartBracket, and a battery life of up to 5 years with pre-installed batteries. Quick setup via the Ajax app makes it ideal for professional and residential environments.

Technical Data Sheet

Reference: 119917.273.WH1

Brand: Ajax Systems

EAN: 4823114069222

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.

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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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119917.273.WH1 | WIRELESS RATE-OF-RISE HEAT DETECTOR


Ajax

The Ajax EN54 FireProtect(Heat) Jeweller, 119917.273.WH1 , is a white wireless rate-of-rise heat detector that ensures reliable fire detection thanks to high-precision thermistor sensors and stable radio communication up to 1,700 m. Installation is quick thanks to SmartBracket support, and management is via the Ajax app. Its long battery life (up to 5 years) and EN54 certification make it ideal for professional and residential environments.

Main specifications:

- Rapid detection of abnormal temperature increases (A1, A1R, B modes, etc.)

- High sensitivity dual thermistor thermal sensors

- Stable and secure Jeweller wireless communication

- Pre-installed CR123A battery with up to 5 years of battery life

- Easy installation without opening the case

- Complies with EN54-5 and Directive 2014/53/EU (RED)

Further details

✅ Communication :
The detector uses the Jeweller protocol , an advanced radio technology that ensures stable communication up to 1,700 m in open fields. The alarm is transmitted to the CIE (control unit) in less than 3 seconds , with the possibility of extension via a repeater (optional). The system automatically adapts power and frequency to avoid interruptions, ensuring constant reliability even in the event of signal loss .
✅ Dangerous temperature detection :
The FireProtect Heat Jeweller detects rapid increases or steady-state temperatures thanks to two high-precision thermistor sensors . It supports multiple detection modes (A1, A1R, B, BR, BS, C, CR, S) that can be configured via the app. This makes it perfect for both residential and industrial environments, ensuring timely intervention in the event of a fire .
✅ Additional features:
  • Pre-installed CR123A battery with up to 5 years lifespan
  • Quick and screwless installation via SmartBracket
  • Sensor rotation up to 90° to adapt to uneven surfaces
  • Complete management from the Ajax app , even remotely
  • Smart notifications in case of low battery or tampering
✅ Anti-sabotage protection :
The detector is designed to resist tampering: unauthorized disassembly triggers an immediate alert. The case does not need to be opened to replace the batteries, reducing the risk of unauthorized access. The system constantly monitors the connection and power status .
✅ EN54 Standard:
The device complies with the EN 54-5 standard, specific for heat detectors, and is approved according to the European Directive 2014/53/EU (RED) . This makes it also suitable for certified installations in professional environments , such as companies, public facilities and industrial plants, as well as private homes.

Technical data sheet

119917.273.WH1
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.
Additional features
LED indication red
yellow
green
For indicating detector states: fire alarm, functionality testing, etc.
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 265 g
9.35 oz
Operating temperature range from 0 °C to +50 °C
from 32 °F to 122 °F
Operating humidity up to 80%
Protection class IP20
Flammability rating UL 94 V-0
Color White
Complete set EN54 FireProtect (heat) 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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