Ajax · Fire, CO and water
FireProtect 2 RB CO detector, white
White carbon monoxide detector with replaceable CR123A batteries, an 85 dB siren and standalone operation.

What it is and what it does
The FireProtect 2 RB CO detector, in white, detects excess carbon monoxide with a chemical sensor. It has an 85 dB siren, works linked to the panel or as a standalone detector and is silenced from the Test button or the app. It uses two replaceable, long-life CR123A batteries, and its radio range is 1700 m in open space.
Who Dartel installs it for
We install it in flats and houses with a boiler, heater or fireplace, next to the bedroom or the living area. The white one looks good on light walls and ceilings. The letters RB mean replaceable battery; with a sealed battery there is the FireProtect 2 SB, black CO detector. If you need smoke and heat, look at the smoke, heat and CO one.
How we install it
We fix it indoors, with no building work. We add it by reading its QR code in the app, assign it to its group and check the signal from the exact spot. We place it away from windows and radiators. We test the siren with the Test button before we leave and explain how the batteries are changed.
Technical summary
Data declared by the manufacturer, as shown on the shop listing.
| Model | AJ-FIREPROTECT2-C-RB-W |
|---|---|
| Use | Indoor |
| Sensors | Chemical CO (carbon monoxide) sensor |
| Frequency | 868 MHz Jeweller |
| Transmission distance | ≤ 1700 m in open space |
| Detections | Excess carbon monoxide (CO) |
| Operation | Linked to Ajax Hubs or as a standalone detector |
| Alarm | Built-in siren 85 dB |
| Silence alarm | Via the Test/Mute button or in the Ajax app |
| Standards | EN 50291 |
| Power supply | 2 CR123A batteries (up to 7 years) |
| Compatibility | Hub Plus, Hub 2 (2G and 4G), Hub 2 Plus, Hub Hybrid (2G and 4G), ReX and ReX 2 |
| Operating temp. | 0° C ~ +50° C |
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Frequently asked questions
Which Ajax panels does it support?
It is compatible with Hub Plus, Hub 2 (2G and 4G), Hub 2 Plus, Hub Hybrid (2G and 4G), ReX and ReX 2. If you already have another installed, we check it before proposing the detector.
Does it sound if the connection is lost?
Yes. It supports standalone operation with its 85 dB siren, so it alerts on the spot even if the panel or the internet fail. With the panel linked, it also alerts your mobile.
Would you like us to install it?
Tell us what kind of home or premises it is and we will say what you need and what you don't. For a flat or a shop with no building work, your floor plan and four photos are enough.



