By Ajax

Ajax Systems' EN54 FireProtect (Smoke/Sounder) Jeweller – Wireless Smoke Detector with Built-in Sounder

Regular price £109.99
Regular price Sale price £109.99
Tax included. Shipping calculated at checkout.
Color: White
Availability:
SKU: AJ-119919
Regular price £109.99
Regular price Sale price £109.99

Important Notice


Professional security system installation is required for this product. While we pride ourselves on providing high-quality customer service and support, we do not offer technical support, troubleshooting, or configuration advice for this product. By purchasing this product, the buyer acknowledges that they are responsible for sourcing their own professional installation and that no technical advisory service is provided by the seller.


Proper installation ensures that your equipment operates at peak efficiency and remains within the legal requirements for UK buildings and insurance policies. Unauthorised DIY attempts at a security system installation on professional-grade hardware can lead to costly repairs and may compromise your home or business insurance coverage. It will also void any chance of returning the product if it is found to be damaged.

 

EN54 FireProtect (Smoke/Sounder) Jeweller

Wireless addressable smoke detector with a built-in fire alarm sounder. Designed for indoor fire detection and audible alarm notification within Ajax systems.



Device compatibility

Works with Ajax control and indicating equipment (CIE) and compatible range extenders.


Communication

Technology: Jeweller wireless protocol

Key features:

  • Two-way communication

  • Encrypted data transmission with dynamic key

  • Instant alarms and notifications

  • Remote 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 sales region)

Maximum radiated power: up to 20 mW
Radio modulation: GFSK

Communication range:
up to 1,700 m in open space between the detector and control panel or range extender.

Security features:

  • Encrypted communication

  • Frequency hopping to prevent interference or jamming



Smoke detection

Sensor type: dual-spectrum optical sensor

Detection method: detects smoke particles based on size in the air.

False alarm protection:

  • Resistant to water vapor

Smoke chamber:
Patented design protects the sensor from dust, insects, and dirt.



Alarm annunciation

Alarm type: acoustic sounder

Sound level: up to 95 dB at 1 m

Sound patterns: 32 tones

Sound synchronization:
All connected devices with sounders trigger simultaneously.

Alarm test:
Allows audible alarm testing to ensure alarms are clearly heard.



Installation

  • Designed for indoor use only

  • SmartBracket mounting panel allows the detector to be rotated up to 90° after installation



Sabotage protection

  • Tamper button detects removal from mounting panel

  • SmartBracket lock prevents unauthorized removal

  • Device authentication protects against spoofing

Communication loss detection: after 36 s (depending on Jeweller settings)



Power supply

Batteries: 2 × CR123A (pre-installed)

Battery type: Huiderui CR123A, 3 V, 1,600 mAh (LiMnO₂)

Battery life: up to 5 years

Battery replacement: tool-free access

Reverse polarity protection: prevents damage if batteries are inserted incorrectly.



Enclosure

Dimensions: 124 × 124 × 48 mm
Weight: 295 g

Operating temperature: 0 °C to +50 °C
Operating humidity: up to 80%

Protection class: IP21C
Flammability rating: UL 94 V-0

Color:

  • Black

  • White

 

View or download Ajax Systems' spec sheet