Unlike other CO alarms, the FA3820 features a pre-alarm warning which encourages ventilation of your property when low levels of carbon monoxide are detected. 1 x FireAngel FA3820 CO alarm. Choose CategoryFoam Fire Extinguishers CO2 Fire Extinguishers Water Fire Extinguishers Powder Fire Extinguishers Wet Chemical Fire Extinguishers Fire Blankets Automatic Fire Extinguishers Fire Extinguisher Stands.
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