The FireAngel FA3322 is a digital display carbon monoxide alarm with a 10-year sealed lithium battery and BSI Kitemark approval. Its advanced electrochemical sensor provides rapid CO detection with low-level CO monitoring, and it replaces end-of-life CO-9D alarms.
The multi-function LCD shows the CO level in ppm and changes colour depending on the event type, giving residents clear visual instructions. Built-in temperature and humidity sensing warns of prolonged extreme environmental conditions, and a monthly overview shows recorded temperature, CO and humidity readings.
Key features
- Multi-function colour-changing LCD with CO reading in ppm and visual user instructions
- Advanced electrochemical sensor, calibrated and tested in CO gas
- Low-level CO monitoring with pre-alarm and ventilate warning
- Environmental monitoring: temperature and humidity warnings
- Memory of previous alarm activation, showing the maximum CO level reached
- Quiet test function; low battery alert silence extended until the next morning
- LED heartbeat intensity reduces automatically at night
- 10-year sealed-for-life lithium battery
- Advanced diagnostics via cable (sold separately)
Technical specifications
- Battery: 10-year sealed lithium
- Display: LCD (performance can be affected below 0°C)
- Operating temperature: -10°C to 40°C
- Operating humidity: 30 to 90% RH
- Alarm sound level: 85dB at 3m
- CO sensor sampling rate: every 55 seconds, increasing to every 12 seconds when CO is detected
- Alarm response (EN 50291): 60 to 90 minutes at 50ppm, 10 to 40 minutes at 100ppm, within 3 minutes at 300ppm or more
- Sensor life: 10 years (replace the unit after 10 years)
- Standards: BS EN 50291-1:2018 and BS EN 50291-2:2019, BSI Kitemark
- Warranty: 5 years
