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 (Heat/Sounder) Jeweller
Wireless addressable heat detector with a built-in fire alarm sounder. Designed for indoor fire detection based on temperature rise or fixed heat thresholds within Ajax systems.
Device compatibility
Works with Ajax control and indicating equipment (CIE) and compatible range extenders.
Communication
Technology: Jeweller wireless protocol
Key features:
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Two-way communication
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Encrypted data transmission with dynamic key
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Instant alarms and notifications
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Remote configuration in Ajax apps
Frequency bands:
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866.0–866.5 MHz
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868.0–868.6 MHz
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868.7–869.2 MHz
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905.0–926.5 MHz
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915.85–926.5 MHz
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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:
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Encrypted communication
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Frequency hopping to prevent interference or jamming
Heat detection
Sensor type: 2 × thermistor
Detects dangerous temperature levels according to EN 54-5 heat detector classes.
Heat sensor modes:
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A1, A1R, A1S
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B, BR, BS
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C, CR, CS
Fixed temperature detection: configurable depending on installation location.
EN54-compliant modes:
A1R, A1S, BR, BS, CR, CS.
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 on site.
Installation
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Designed for indoor use only
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SmartBracket mounting panel allows rotation up to 90° after installation
Sabotage protection
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Tamper button detects removal from mounting panel
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SmartBracket lock prevents unauthorized removal
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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: 278 g
Operating temperature: 0 °C to +50 °C
Operating humidity: up to 80%
Protection class: IP21C
Flammability rating: UL 94 V-0
Color:
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Black
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White