FireProtect 2 SB (Heat/Smoke/CO) Jeweller

Wireless combined heat, smoke, and CO detector with sealed batteries

Product versions

Accuracy through steam, dust, and time

FireProtect 2 (Heat/Smoke/CO) Jeweller is a battery-powered fire detector designed to protect homes without false alarms. Its dustproof and insect-resistant smoke chamber, dual-spectrum optical sensor, proprietary software algorithm, two thermistors, and a chemical carbon monoxide (CO) sensor deliver best-in-class detection accuracy. If danger is real, an 85 dB siren, two interconnection types, and instant push notifications in Ajax apps make the alarm impossible to ignore. With thoughtful design, self-monitoring, and early low battery alerts, the device ensures uninterrupted protection with fewer maintenance visits.

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
  • Smoke
  • 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
• Dual-spectrum optical smoke sensor to filter out false alarms
• Dustproof and insect-resistant smoke chamber

Detection without compromise

Smoke detection
The detector is designed to ensure accurate smoke detection over time. A dustproof and insect-resistant smoke chamber features a dual-spectrum optical sensor. It uses blue and infrared LEDs to measure the concentration of combustion products and the size of their volatile particles. The HazeFlow 2 algorithm then analyzes the collected data to distinguish smoke from false triggers, such as vapor or steam. If the analysis indicates a real fire, the detector instantly raises an alarm.

Heat detection
FireProtect 2 (Heat/Smoke) Jeweller is equipped with two A1R-class thermistors to detect smokeless fires. Positioned outside the enclosure, the thermistors immediately register if the temperature rises by 10 °C within a minute or exceeds a threshold of +64 °C. This design ensures the fastest possible response, even when a threat grows gradually.

CO detection
CO is a highly poisonous yet colorless and odorless gas. Without a CO detector, it can build up unnoticed until poisoning occurs. Equipped with a chemical sensor, FireProtect 2 (Heat/Smoke/CO) Jeweller monitors the CO level and warns about dangerous concentrations before the first symptoms appear. The sensor ensures reliable CO detection for up to 10 years.

The detector is triggered if the CO level reaches:

• 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/Smoke/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

Clear alerts for faster response

In addition to LED indication, FireProtect 2 (Heat/Smoke) Jeweller features impossible-to-ignore sound alerts, thanks to a powerful 85 dB siren with distinct tones. Each indication corresponds to a specific event, drawing attention and helping users react accordingly.

Sound and LED indications

• Smoke or heat alarms
• Dangerous CO level
• Malfunction
• Low battery
• End of life

Enhanced wireless interconnection

To spread an alarm across the facility as quickly as possible, FireProtect 2 (Heat/Smoke) Jeweller supports primary and fallback1 interconnection with other on-site fire detectors. The primary one operates via a hub: the detectors alert the hub to a threat, which then activates the sirens of all fire detectors on-site. The process takes just 20 seconds — three times faster than standards require. If hub communication is lost, the fallback interconnection takes over. The initiating fire detector directly communicates with other devices, raising the alarm across the system within a minute. Even in the worst-case scenario, people on-site are warned and have time to act.

Advanced automation for greater safety

While FireProtect 2 Jeweller detectors can be used as standalone devices, they gain many more capabilities within a larger Ajax system. They can interact with automation devices and MotionCam (PhOD) Jeweller detectors via scenarios, triggering automated responses to fire alarms. This interaction helps enhance home protection when people are away or speed up evacuation when they are on site.

Effortless installation and maintenance

FireProtect 2 (Heat/Smoke/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.