Ajax EN54 Fire Detection (Smoke/Sounder) White

The unique smoke chamber, dual-spectrum optical sensor, and proprietary HazeFlow 2 software algorithm guarantee the speed and accuracy of fire detection.
The smoke chamber is hardwired with a dual-spectrum optical sensor that has blue and infrared LEDs with different wavelengths. It measures the microparticle concentration in the air to determine the size of the volatile particles inside the chamber and responds only to smoke.
The HazeFlow 2 algorithm analyses and compares data from the dual-spectrum optical sensor to a specified pattern to define smoke from vapor or steam. The detector instantly raises the alarm when pattern dynamics indicate a real case of fire.

Communication

Jeweller 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
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 / Between the device and control and indicating equipment (CIE) or a range extender in an open space.
Encrypted communication : All stored and transmitted data is protected by block encryption featuring a dynamic key.
Frequency hopping : To prevent radio interference and jamming.

Smoke detection

Sensitive element : dual-spectrum optical sensor / Detects smoke based on the size of particles in the air.
False alarm protection : The device does not respond to water vapor.
Patented smoke chamber : Protects the smoke sensor from dust, dirt, and insects.

Alarm annunciation

Alarm type : acoustic
Sound volume : up to 95 dB at a distance of 1 m / 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 Jeweller 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; 3 V; 1,600 mAh, LiMnO₂
Calculated battery life : up to 5 years

Enclosure