FireAngel 10 Year Carbon Monoxide Alarm - Sealed for Life Battery FA3820

Fire Angel Carbon Monoxide Alarm With Sealed for Life Battery White - FA3820. The FireAngel FA3820-EUX10 carbon monoxide detector is specially designed to determine the concentration of carbon monoxide and to sound an alarm if concentrations are too high. Equipped with a non-replaceable lithium battery for 10 years.. Features. 10 year life featuring a 10 year sealed for life lithium battery. Advanced electrochemical sensor calibrated and tested in CO gas. Ventilate 'pre-alarm' warning: Low-level monitoring function. The quiet test function supports discreet testing at a lower volume when compared to standard CO alarms. Memory function indication of previous alarm activation. Prominent visual alarm notification