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FireProtect 2 AC (CO).
Wireless mains-powered fire detector with CO sensor
Standards and certifications
FireProtect 2 AC (CO) Jeweller · FP2.ACC.J. Manufacturer-listed marks; regional and installation conditions apply.
Mains-powered warning for carbon monoxide.
FireProtect 2 AC (CO) Jeweller uses a chemical sensor to monitor carbon monoxide exposure and sound a local warning. It uses mains power with a non-replaceable backup battery. A compatible hub adds app notifications and coordinated alarms. This model does not detect smoke, temperature rise, methane or other fuel gases.
Key features. At a glance.
Two types of interconnected fire alarm1
Primary: via an Ajax hub, an alarm in 20s
CO sensor
with a 10-year service life
SmartBracket
with an adjustable rotation angle
Easy wiring
with WAGO 221
Main power supply2
110–240 V~
Backup battery
85 dB built-in siren
Remote control and configuration
Operates as part of the Ajax system or without pairing with an Ajax hub
Informative in-app notifications
Configured photo scenario received from a compatible MotionCam (PhOD).
Two colours
Up to 1,500 m3
range of communication with an Ajax hub
- 1Requires supported detector hardware/firmware, hub version, configuration and tested radio coverage. See the interconnection section for the applicable conditions.
- 2The backup battery is non-replaceable. Replace the detector when the backup battery is depleted or the 10-year service life ends.
- 3Range is measured in open space; walls and installation conditions reduce it.
Ajax product information ↗ · FireProtect 2 AC (CO) Jeweller specifications ↗
Protection in real places.
Monitor carbon monoxide as well as exposure time.
A dedicated chemical CO sensor
The sensor responds to accumulated carbon monoxide exposure. Ajax specifies an alarm within 90 minutes at 50 ppm, 40 minutes at 100 ppm and 3 minutes at 300 ppm. The CO sensor has a 10-year service life.
This is a carbon monoxide alarm, not a detector for methane or other fuel gases. It does not replace proper installation and maintenance of fuel-burning appliances.
Mains power. Backup when the supply stops.
110–240 V AC with a built-in reserve
The detector uses 110–240 V AC at 50/60 Hz, with mains consumption up to 2 W. A built-in CR-2/3AZ lithium battery provides backup when the external supply is interrupted. The app shows external-power and backup-battery status when a hub is connected.
The backup battery is non-replaceable. Replace the detector when that battery is depleted or at the end of its 10-year service life. Battery Life Optimization must be enabled; backup endurance depends on use and conditions.
A local alarm, with a clear device status.
85 dB sound and LED indications
The built-in siren is rated at 85 dB at 3 m. Sound patterns and LEDs distinguish an alarm from a fault, low battery or end of life. With a compatible connected hub, configured app notifications identify the detector and its room.
The detector monitors its own sensors even when the intrusion system is disarmed. As a standalone detector it provides local warnings; app notifications and remote settings require a hub.
One detector can warn the others.
Primary alarm through the hub
An enabled detector sends its alarm to the compatible Ajax hub, which activates the other fire detectors within 20 seconds. System capacity depends on the hub, connected devices and configuration.
A direct path between detectors
Compatible FireProtect 2 detectors can propagate the alarm directly within 60 seconds, including when the hub connection is lost. This fallback path runs alongside primary interconnection.
Requires supported detector hardware and firmware 5.59.2-series or later, the enabled fallback setting and a successful coverage test. With a hub, use OS Malevich 2.19 or later; Hub (4G) requires 2.28 or later.
A local network without a hub
Supported detectors can be paired into a standalone alarm network of up to 50 units. Follow the exact pairing instructions and test coverage. This arrangement provides local sound and LED warnings; it does not send Ajax app notifications without a hub.
Keep the radio path connected.
Jeweller two-way communication
Jeweller carries alarms and device states using encrypted communication, device authentication, frequency hopping and automatic power adjustment. Check the model’s specified open-space range and measure signal strength in its installed position.
Check the hub before installation.
Exact model and firmware matter
These AC detectors require a supported Ajax hub with OS Malevich 2.18 or later. Hub (4G) requires 2.28 or later. Fallback interconnection has the additional conditions described above. Confirm the radio region and exact compatibility list before pairing.
See the alarm and its source.
Device, room and event history
With a connected hub, Ajax app notifications identify the detector and room. The event log records the time and event type. Configured PRO Desktop or monitoring-station integration adds an operator view; monitoring service and response arrangements are separate.
Coordinate an appropriate response.
A planned system scenario
A compatible hub and separate Ajax automation devices can connect a CO alarm to an assessed response, such as releasing suitable electric door hardware. The detector itself contains no lock controller.
Door hardware, power supplies and evacuation requirements must be assessed together. A scenario does not replace the required CO alarm response.
A neat route for surface wiring.
CableTrunk, where the cable comes from the side
The optional CableTrunk accessory joins surface cable trunking to FireProtect 2 AC. It provides a dedicated route to the mounting panel while keeping the ceiling finish tidy.
CableTrunk is a separate accessory. Electrical work and cable routing must be included in the installation plan.
Wire, pair and check the installation.
SmartBracket with WAGO 221 connectors
A qualified installer connects the mains supply using the two pre-installed WAGO 221 terminals in SmartBracket, fixes the panel and aligns the detector. Choose the mounting position and clearances from this model’s manual.
Indoor use only: 0 to +50 °C and up to 80% humidity. Electrical work is planned and quoted separately. A room photograph is an application example, not a placement rule.
Test it. Respond to service warnings.
Test/Mute on the front panel
Press the centre of the front panel to start the detector self-test as described in the manual. App testing is available with a connected compatible hub. Check the sound and light indications after commissioning and follow the regular testing schedule.
Wait at least 3 minutes after switching the detector on before testing. Local requirements may call for more frequent checks.
Plan for the detector’s service life
Respond to fault, low backup-battery and end-of-life warnings. The detector has a 10-year service life and must also be replaced if its non-replaceable backup battery is depleted. Do not treat a renewed mains connection as a battery replacement.
Treat a CO alarm as an alarm.
Silencing is not an all-clear
Use remote silencing only while in the line of sight of the CO detector. The alarm cannot be muted when the CO level exceeds 300 ppm. Silencing the sound does not remove the hazard; follow the emergency instructions in the manual and your local response procedure.
Find the right fire detector.
Compare what each FireProtect detects, how it is powered and what you will need to maintain. Choose the sensor combination for the hazards in the room.
Compare fire detectors →Every detail, in one place.
Communication
- Jeweller communication technology
- Two-way system communication for the functions specified for this model.
- Radio communication range
- up to 1,500 m Between detector and hub (or range extender) in an open space.
- Encrypted communication
- Encrypted device communication.
- Frequency hopping
- Radio communication uses frequency hopping to prevent interception and jamming.
Carbon monoxide (CO) detection
- Sensitive element
- chemical CO sensor
- Alarm if accumulated dose of CO is exceeded
- over 50 ppm (0.005%) — in 90 minutes or less; over 100 ppm (0.01%) — in 40 minutes or less; over 300 ppm (0.03%) — in 3 minutes CO concentration exceeding 400 ppm (0.04%) within a span of 3 hours poses a life-threatening risk. The detector will cease notifications regarding hazardous carbon monoxide levels once the concentration decreases to 50 ppm (0.005%) within a 1-minute duration.
- Sensor service life
- 10 years After 10 years of operation, the detector must be replaced with a new one.
Additional features
- Built-in siren
- volume 85 dB at a distance of 3 meters Sound notification of alarms. Remains active until the reason for triggering is eliminated or until the user manually disables the 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 An LED indicator on the device enclosure lights continuously when powered by an external power source. If the device draws power from the backup battery, the LED indicator lights up once every 56 seconds. This indication complies with the requirements stipulated in EN 14604 and EN 50291 standards. yellow is a malfunction indication An LED indicator on the device enclosure lights up to signal detected malfunctions. This can occur in instances such as battery depletion or reaching the end of the service life. red is a fire alarm indication An 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, pressing the button starts the detector self-test. In the event of an alarm or malfunction, the pressing turns off the detector sound notification.
- External power supply
- 110–240 V~, 50/60 Hz The phase and neutral cables from the external power supply should be connected to the WAGO terminals on SmartBracket mounting panel. To remove the detector from SmartBracket, there is no need to disconnect the power cables.
Sabotage protection
- Tamper alarm
- Notifications on attempts to detach the detector from the surface or remove it from the mounting panel.
- Protection against spoofing
- device authentication
- Communication loss detection
- within 15 minutes The time required to detect a communication loss depends on the settings for the number of undelivered data packages (specified in the Jeweller or Jeweller/Fibra settings).
Power supply
- Main
- 110–240 V~, 50/60 Hz Up to 2 W of mains power consumption.
- Backup
- 1 non-replaceable lithium battery CR-2/3AZ Allows the detector to operate autonomously without the main power source.
Enclosure
- Dimensions
- 122 × 122 × 54 mm
- Weight
- 304 g
- Operating temperature range
- from 0°С to +50°С
- Operating humidity
- up to 80%
What’s in the box
- FireProtect 2 AC (CO) Jeweller
- SmartBracket mounting panel
- WAGO 221 3-conductor terminal — 2 pcs.; (pre-installed in SmartBracket)
- Installation kit
- Quick start guide
For your installation
- Confirm the supported control panel, device software and regional radio version; test coverage at the final installation position.
- The device is designed for indoor installation only.; SmartBracket mounting panel allows adjusting the position of the detector even after installation.
Optional additions
Product documents.
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