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Ajax FireProtect 2 RB (Heat/CO) Jeweller - Black
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FireProtect 2 RB (Heat/CO) Jeweller
Wireless combined heat, and CO detector with replaceable batteries
Product versions
| FireProtect 2 RB (Heat/CO) Jeweller | FireProtect 2 SB (Heat/CO) Jeweller |
| Up to 7 years of operation on replaceable batteries | Up to 10 years of operation on sealed batteries |
Against invisible threats
FireProtect 2 is a next-gen detector designed for residential fire safety. Two thermistors quickly react to the synthetic materials burning, and the carbon monoxide sensor alarms before the concentration level become threatening. Thought-out design, mounting, and in-app settings make installation straightforward and quick. Everything meets the most modern fire safety standards.
Key Features
- Two types of interconnected fire alarm
- Primary via Ajax Hub, alarm within 20 s
- Fallback via detector-detector, alarm within 60 s
- Versions with different battery types
- Replaceable
- Sealed
- Sensors
- Heat
- CO
- 85 dB built-in siren
- Remote control and configuration
- Informative push notifications
- Up to 1,700 m communication range with an Ajax hub in open space
- Jeweller radio communication
- Two colours
- Black
- White
- Operates as part of the Ajax system or as a standalone device
- SmartBracket with an adjustable rotation angle
Even when it's fire without smoke
FireProtect 2 is equipped with two A1R-class thermistors to detect smokeless fire threats. They give a significant advantage in detecting a rapid temperature rise when synthetic materials burn, or a fire starts from smoldering. Thermistors are located outside the enclosure to eliminate life-saving detection delays. So FireProtect 2 is ready to detect a fire as fast as possible, even if it starts imperceptibly.
- 10°C increase in temperature within a minute
- Exceeding +64°C
Protects from invisible danger
Carbon monoxide (CO) is colorless, odorless, and otherwise imperceptible without a carbon monoxide detector, so poisoning can occur unnoticed. Even low concentrations can be enough to have a negative health impact, especially on those with chronic illnesses, pregnant, the elderly, and young children. High-level exposure can cause permanent damage or even death in a very short period of time. FireProtect 2 warns about a dangerous CO concentration at the level of 50 ppm before even the first signs of poisoning occur. A built-in chemical sensor is responsive to low concentrations and can accurately detect the CO level straight up to 10 years.
- 50 ppm in no more than 90 minutes
- 100 ppm in no more than 40 minutes
- 300 ppm in no more than 3 minutes
Stable performance for a decade
FireProtect 2 (Heat/CO) Jeweller delivers up to 10 years of autonomous operation thanks to pre-installed batteries, sealed or replaceable. Real-time battery status is always visible in Ajax apps, so there is no need for unnecessary maintenance visits. If the battery runs low, users receive push notifications and on-site LED and sound alerts 30 days before the full discharge.
SB version
Up to 10 years of operation
on sealed batteries
RB version
Up to 7 years of operation
on replaceable CR123A batteries
Always informed, everywhere
For residential fire alarm systems, informing people about fire danger is the priority. FireProtect 2 is equipped with a powerful 85 dB siren to eliminate the risk of missing an alarm. The detector uses impossible-to-ignore tones with different patterns to indicate an alarm or event, so it’s easy to recognize the type of threat and react accordingly.
Different sound and LED indications
- Heat alarms
- Dangerous CO level
- Malfunction
- Low battery level
- End of life
Enhanced wireless interconnection
All FireProtect 2 detectors can synchronously notify about the fire alarm in two ways: primary and fallback. In case of danger, the initiating detector sends a fire alarm to the hub. The hub initiates the primary interconnect: all fire detectors will activate the built-in sirens in 20 seconds — three times faster than the fire standard requires. All information is immediately available in Ajax apps: initiating detector’s location, fire alarm type, and exact time.
If there is no connection with the hub, the initiating detector activates the fallback interconnection by directly sending the alarm to other fire detectors. It takes only 1 minute to raise an alarm.
Unleash the Ajax power
The Ajax smart and complex ecosystem brings new standards to the fire safety industry. FireProtect 2 is ready to protect your home without an Ajax hub but can do even more when connected to it. Intuitive Ajax apps provide remote setup and all detector information in real-time from anywhere the Internet is available, on a smartphone or PC. With instant notifications, there is no chance of missing a fire alert, and scenarios let you automate fire security to enhance home protection while you’re away. A complete set with stable wireless communication — essential reliability tested over the years by nearly two million users.
Full monitoring for the building
Data-rich notifications
The system instantly notifies about alarms with the critical alerts from the Ajax apps. Security companies and users know exactly which device triggered, when and where it happened. The system controls each device state and reports if there is a malfunction or it's time to replace the batteries.
Detailed event log
The event log records 500 recent events within the system. The data is explicit with the device, time, and description of the event. It helps reconstruct the actual event and find the causes to obtain comprehensive information for firefighters or an insurance company.
Monitoring with PRO Desktop
With PRO Desktop, building administration staff can observe not only security but Ajax fire detectors for instant reaction to alarms. Device statuses, event log, batteries data — the CMS operator has a complete picture in one intuitive interface, all informative and centralized. The installation engineer can remotely change the settings and provide services in time.
Advanced automation for greater safety
Ajax fire detectors are a part of the Ajax ecosystem and can interact with automation devices and PhOD detectors of the MotionCam lineup through scenarios. In the case of a fire alarm, the WallSwitch relay de-energizes the house, and Relay activates emergency lights. At the same time, MotionCam (PhOD) sends pictures into Ajax apps to identify the cause of the alarm. The result is a reliable combination of security and automation that works as a Swiss watch.
| Photo Evidence of fire | Power supply control | Electric lock unlocking |
| To quickly assess the situation at the protected facility and respond accordingly. Fire detected > FireProtect 2 Jeweller > MotionCam (PhOD) Jeweller > Cause of fire |
To cut off power to a possible source of fire and protect appliances from the consequences of firefighting. Fire detected > FireProtect 2 Jeweller > WallSwitch Jeweller > Mains power cut > Relay Jeweller > Emergency lights activated |
To speed up people's evacuation and ease firefighters' access to the building. Fire detected > FireProtect 2 Jeweller > Relay Jeweller > Emergency exits unlocked |
Unique wireless technologies
The Ajax system uses two-way secure radio communication based on the Jeweller proprietary protocol. It supports block cipher encryption and device authentication on every session with the hub to prevent sabotage, spoofing, or data theft.
Ajax wireless technology has up to 1,700 meters of radio signal communication range in an open space, making it on average longer than competing solutions from different manufacturers. Automatic power adjustment makes it energy efficient by not using the maximum power of radio transmitters in system devices on a regular basis. It is also more stable, using less noisy radio frequencies. Ajax hubs use radio hopping to protect against radio interference and signal interception. The system automatically changes frequency within a band and notifies the security company and users about the jamming.
- Up to 1,700 meters of radio communication with a hub
- Encrypted two-way radio communication
- Notifications about jamming and connection loss
Effortless installation and maintenance
FireProtect 2 (Heat/CO) Jeweller is ready to operate straight out of the box. With no enclosure disassembly required and intuitive in-app setup, it can be up and running within minutes. Maintenance and testing are just as effortless thanks to the self-test feature, real-time device state, and remote configuration available in Ajax apps.
| Connection | Installations | Setup | Maintenance |
| Adding to the system via a QR code | SmartBracket panel with a 90° rotation angle and no enclosure disassembly | Configuration and testing in mobile and desktop Ajax apps | A self-test system automatically diagnoses sensors' state |
| Category Type | Detector Sounder |
|---|---|
| Colour | Black |
| Detection | Heat, Carbon Monoxide |
| IP Rating | IP20 |
| System Type | Domestic |
| Clearance | No |
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 are protected by block encryption featuring a dynamic key. |
| Frequency hopping |
To prevent radio interference and jamming. |
Sensitive elements
| Sensitive element |
heat sensor CO (carbon monoxide) sensor |
Dangerous temperature detection
| Sensitive element |
according to the requirements for Class A1R heat detectors Requirements of EN 54-5 and BS 5446-2 standards. |
| High temperature alarm |
at temperatures above 64°C |
| Temperature spike alarm |
when the temperature rises more than 10°C in 1 minute or less |
Carbon monoxide (CO) detection
| Sensitive element |
chemical CO sensor |
| Alarm if accumulated dose of CO is exceeded |
more than 50 ppm (0.005%) — no more than in 90 minutes more than 100 ppm (0.01%) — no more than in 40 minutes more than 300 ppm (0.03%) — no more than in 3 minutes CO concentration of 400 ppm (0.04%) within 3 hours can be life-threatening. The detector stops notifying about the dangerous level of carbon monoxide when the concentration drops to 50 ppm (0.005%) within one minute. |
| Sensor life |
10 years After 10 years of operation, the detector must be replaced with a new one. |
Additional Features
| In-built siren |
volume 85 dB at a distance of 3 meters Sound notification of alarms. Active until the reason for triggering is eliminated or until the user disables notification. |
| Interconnected fire detectors alarms |
via primary interconnection If one of the fire detectors in the system detects a threat, it sends an alarm to the hub. Within 20 seconds, the hub initiates an interconnected alarm and sends data to Ajax apps. via fallback interconnection At the same time with notifying the hub, the initiating detector sends an alarm directly to other detectors. All connected detectors activate the buzzer within a minute. It will work even in the worst-case scenario of losing connection with the hub. |
| LED indication |
green is a power indication A LED indicator on the device enclosure lights up once every 56 seconds. The indication meets the requirements of EN 50291. yellow is an indication of malfunctions A LED indicator on the device enclosure lights up when malfunctions are detected. For example, in the case of discharged batteries, contamination of the smoke chamber, or end of the service life. red is an indication of fire alarms A LED indicator on the device enclosure lights up when the detector registers a fire alarm. |
| Button on the front panel of the detector |
In normal mode, when pressed, it starts the smoke chamber test. In the event of an alarm or malfunction, the pressing turns off the detector sound notification. |
Sabotage protection
| Tamper Alarm |
Alerts of attempts to detach the detector from the surface or remove the mounting panel. |
| Protection against spoofing |
device authentication |
| Detection of communication failure |
within 15 minutes The time to detect communication loss depends on the settings for the number of undelivered data packages (specified in the Jeweller or Jeweller/Fibra settings). The polling interval is fixed at 300 seconds. |
Power supply
| Battery |
2 × CR123A battery Up to 7 years of battery life. |
Enclosure
| Dimensions |
44 × 86 × 86 mm |
| Weight |
149 g |
| Operating temperature range |
from 0 °C to +50 °C |
| Operating humidity |
up to 80% |
| Protection class |
IP20 |
Complete set
| Contains | FireProtect 2 RB (Heat/CO) Jeweller SmartBracket mounting panel Installation kit 2 × CR123A battery (pre-installed) Quick Start Guide |








