Ajax · Fire, CO and water
FireProtect 2 SB smoke, heat and CO detector, black
Black smoke, heat and carbon monoxide detector, with built-in batteries, a patented smoke chamber and an 85 dB siren.

What it is and what it does
The black FireProtect 2 SB brings four alarms together in one device: smoke, carbon monoxide build-up, a rapid temperature rise and high temperature, with a +64 °C threshold. It has a patented smoke chamber and an 85 dB siren. Its lithium batteries are built in, long-life, and it works linked to the panel or on its own.
Who Dartel installs it for
We install it on dark or beamed ceilings, in homes and shops where we want to forget about changing batteries. The letters SB mean sealed battery: it is not changed, the whole unit is replaced at the end. With replaceable batteries and in white, there is the FireProtect 2 RB, white. We check the panel you have before proposing it.
How we install it
We screw it to the ceiling of the corridor, the kitchen or the boiler room, 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, and at the end we test the siren with the Test button.
Technical summary
Data declared by the manufacturer, as shown on the shop listing.
| Model | AJ-FIREPROTECT2-HSC-SB-B |
|---|---|
| Use | Indoor |
| Frequency | 868 MHz Jeweller |
| Transmission distance | ≤ 1700 m in open space |
| Detections | Smoke, CO, rapid temperature rise and temperature threshold |
| Temperature threshold detection | +64°C |
| 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 | EN14604 and EN 50291 |
| Power supply | 2 non-replaceable lithium batteries (up to 10 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
How does it differ from the FireProtect Plus?
It is the second generation: it adds a patented smoke chamber, four distinct alarms and a longer radio range, 1700 m in open space. We explain it to you with your home in front of us.
Can it be silenced from the mobile?
Yes. The alarm is silenced from the Ajax app or with the detector's Test and Silence button. That way you do not have to climb on anything to silence an alert.
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.