Ajax FireProtect 2 RB (CO) black
Out of stock
The Ajax FireProtect 2 RB (CO) is a wireless carbon monoxide (CO) detector, powered by replaceable CR123A batteries (“RB” version), which provide up to 5-7 years of operation, depending on settings.
The detector is compatible with Ajax Hub (Hub, Hub Plus, Hub 2, etc.) and can also work independently without a central unit.
140,00 €173,60 € Excl. VATIncl. VAT
Out of stock
Ajax FireProtect 2 RB (CO)
CO (carbon monoxide) detection
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The device is activated according to the cumulative CO level:
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>50 ppm (~0.005 %) – alarm within 90 min
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>100 ppm (~0,01 %) – alarm within 40 min
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>300 ppm (~0,03 %) – alarm within 3 min
If CO falls below 50 ppm within one minute, alarm stops.
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Sensor lifetime: 10 years – after that the device needs to be replaced.
Alarm and connection functions
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Built-in siren with ~85 dB volume (~3 m distance), which sounds an alarm and can be silenced with the Test/Mute button.
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Interconnected alarm: if one FireProtect detector detects an alarm from data activity, the sirens of all detectors in the system will be activated within approx. 20 seconds – even in offline mode (requires appropriate firmware version).
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LED indicators:
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Green – power present (flashes every ~56 seconds)
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Yellow – fault or battery warning
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Red – alarm due to CO level
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Communication range up to ~1 700 m in open field conditions; works with other Ajax devices (ReX, ReX 2 compatible).
Power and lifetime
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Powered by 2 × CR123A batteries (~1600 mAh).
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Battery life up to 5-7 years (RB version). RB requires activation of special energy saving settings in the hub system.
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Overall lifetime guarantee and optimum sensitivity of the device up to 10 years, after which it is recommended to replace the device.
Total technical data
| Function | Description |
|---|---|
| Identification types | Carbon monoxide (CO) |
| CO alarm levels | >50 ppm ≤ 90 min; >100 ppm ≤ 40 min; >300 ppm ≤ 3 min |
| Power supply | 2 × CR123A (RB), up to 5-7 years battery life |
| Lifetime of the device | ~10 years |
| Alert | Piezosireen ~85 dB (~3 m) |
| Interconnected alarm | Yes, synchronous with other FireProtect devices |
| Connection protocol / radius | Jeweller, up to ~1700 m in open area |
| LED indicators | green-light, yellow-light, red-alarm |
| Security features | Tamper, encryption, frequency hopping |
| Installation | Indoor, under SmartBracket |
| Dimensions / weight | ~124 × 124 × 45 mm; 147-275 g (source varies) |
| Temperature / humidity | 0-50 °C; up to 80 % RH |
| Class of protection | IP20 |
| Certificates & Warranty | CE, EN 50291; 24 months manufacturer’s warranty |
Why choose only the CO version?
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If you only need to detect surging gas, this is a suitable and compact solution.
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CO sensors react slowly to accumulated toxic gas, not to smoke or heat.
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The price is usually lower than for combined models.
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Can be used alone or integrated with a hub in a smart system.
