Categories
Ajax FireProtect 2 AC (Heat/Smoke/CO)
Ajax FireProtect 2 AC is a mains-powered detector designed for residential fire safety. The unique smoke chamber does not require regular cleaning, and sophisticated software minimizes false alarms. The dual-spectrum sensor instantly distinguishes smoke from steam, and two thermistors quickly react to the synthetic materials’ burning. The carbon monoxide sensor alarms before the concentration level becomes threatening. Everything meets the latest fire safety standards. Thought-out design, improved mounting panel with WAGO 221 connectors, and in-app settings make the installation process nice and easy, giving an ultimate experience for PRO.
| Fire & gas detection technology | Dual-spectrum optical smoke sensor; HazeFlow 2 false-alarm algorithm; CO (carbon monoxide) electrochemical sensor; Two built-in thermistors for fast heat detection; Dust- and insect-proof smoke chamber design |
| Alarm & safety response | 85 dB built-in siren; Distinct alarm types for smoke, heat rise, and CO levels; Interconnected fire alarms across system (all detectors trigger together within seconds); Always-active protection (works 24/7 regardless of security mode) |
| Power & connectivity | 110–240 V AC mains power supply; Built-in backup battery for power outage operation; Jeweller encrypted wireless protocol; Communication range up to ~1,700 m in open space |
| System intelligence & integration | Works with Ajax Hub or standalone mode; Tamper protection (mounting removal and enclosure opening detection); Automation scenario support (e.g., ventilation shutdown, emergency actions) |
| Installation & reliability | Indoor ceiling or wall mounting (SmartBracket); Signal strength monitoring via app; Designed for stable long-term operation with maintenance alerts |
| Category | Feature / Parameter | Details |
| Communication | Technology | Jeweller proprietary wireless communication system |
| Purpose | Transmits commands, alarms, and events | |
| Key features | Two-way communication; anti-sabotage; dynamic-key block encryption; instant notifications; remote configuration via Ajax apps | |
| Frequency bands | 866.0–866.5 MHz; 868.0–868.6 MHz; 868.7–869.2 MHz; 905.0–926.5 MHz; 915.85–926.5 MHz; 921.0–922.0 MHz (region dependent) | |
| Maximum ERP | Up to 20 mW with automatic power control | |
| Radio modulation | GFSK | |
| Range | Up to 1,700 m (open space between detector and hub/range extender) | |
| Encryption | Block encryption with dynamic key | |
| Frequency hopping | Used to prevent interception and jamming | |
| Sensors | Smoke sensor type | Double-spectrum optical sensor |
| Smoke detection principle | Detects particle size in air | |
| False alarm protection | Does not react to water vapor | |
| Smoke chamber | Patented design protects from dust, dirt, and insects | |
| Heat detection standard | Class A1R heat detector (EN 54-5, BS 5446-2 compliant) | |
| High temperature alarm | Triggered above 64°C | |
| Temperature spike alarm | Triggered if temperature rises >10°C in ≤1 minute | |
| CO sensor type | Chemical carbon monoxide sensor | |
| CO alarm thresholds | ≥50 ppm (≤90 min); ≥100 ppm (≤40 min); ≥300 ppm (≤3 min) | |
| CO danger level | ≥400 ppm over 3 hours is life-threatening | |
| CO reset condition | Stops alerts when level drops below 50 ppm within 1 minute | |
| Service life | 10 years (replacement required afterward) | |
| Additional features
| Built-in siren | 85 dB at 3 m |
| Siren behavior | Active until alarm cleared or manually disabled | |
| Interconnected alarms (primary) | Hub triggers system alarm within 20 seconds | |
| Interconnected alarms (fallback) | Detectors trigger each other directly within 1 minute | |
| LED indication (green) | Power status (continuous or every 56 seconds on battery) | |
| LED indication (yellow) | Malfunction warning (battery, contamination, end of life) | |
| LED indication (red) | Fire alarm indication | |
| Control button | Smoke test; silences alarm or malfunction sound | |
| Power
| External power supply | 110–240 V~, 50/60 Hz via WAGO terminals |
| Power consumption | Up to 2 W | |
| Backup battery | CR-2/3AZ non-replaceable lithium battery | |
| Protection
| Tamper alarm | Alerts on removal from surface or mounting panel |
| Spoofing protection | Device authentication | |
| Communication loss detection | Within 15 minutes (depends on settings) | |
| Usage | Indoor only | |
| Installation | Mounting system | SmartBracket adjustable mounting panel |
| Enclosure
| Dimensions | 122 × 122 × 54 mm |
| Weight | 318 g | |
| Operating temperature | 0°C to +50°C | |
| Humidity | Up to 80% | |
| Colours | Black, White | |
| Kit contents | Included items | FireProtect 2 AC unit; SmartBracket; 2× WAGO 221 terminals (pre-installed); installation kit; quick start guide |
