Ajax Systems EN54 – Wireless Fire Security Heat Detector with Built-in Sounder FireProtect (Heat/Sounder) Jeweller
EN54 FireProtect (Heat/Sounder) Jeweller Wireless fire security 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: 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 Fire Security Heat detection Sensor type: 2 × thermistor Detects dangerous temperature levels according to EN 54-5 heat detector classes. Heat sensor modes: A1, A1R, A1S B, BR, BS 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 Designed for indoor use only SmartBracket mounting panel allows rotation 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: 278 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