Breathe Easy

At FireAngel, we're dedicated to protecting and improving our customers’ lives by making innovative, cutting-edge fire safety technology that’s simple and accessible. The FA3820’s electrochemical sensing technology enables a fast reaction to rising levels of carbon monoxide (CO), aka ‘The Silent Killer’, helping to keep you and your family safe.

• HOME SAFETY: CO has no colour, smell or taste; it is completely invisible and undetectable to human senses. making it especially dangerous as it can build up in enclosed spaces without any warning signs. A CO detector is the only way to ensure your safety.
• SEALED-FOR-LIFE BATTERY: The FA3820 CO alarm has a 10-year, tamper-proof battery that will last the lifetime of the alarm. A flashing amber '!' and an audible beep will alert you when the device needs replacing.
• SLEEP EASY FUNCTION: If the low battery warning sounds at night, activate the Sleep Easy function by pressing the test button to mute the alarm for 8 hours whilst the amber light flashes. Replace the device ASAP.
• UK SAFETY STANDARDS: The FA3820 CO detector is CE and UKCA marked, Kitemark certified, and has been rigorously tested and approved by the British Standards Institute (BSI) to BS EN 50291-1:2018 and BS EN 50291-2:2019. Suitable for all domestic and rental premises.

The FA3820 offers the highest level of CO detection for your home and replaces end-of-life CO-9X alarms.

FireAngel: Smarter solutions for safer homes.

Visual and Audible Warnings

The FireAngel digital CO alarm is designed with an effective dual alert system.

• In the event of a CO leak, four loud chirps – 85 dB(A) at 3 m (min) – will sound, providing an audible alarm.
• An insistent flashing red ‘CO’ LED light will give you a visual alert.

• 10 year sealed lithium battery
• Advanced electrochemical sensor for rapid CO detection
• BS EN 50291-1: 2018 & BS EN 50291-2: 2019
• Low level monitoring with unique `pre alarm’ and ventilate warning for enhanced CO safety
• Memory function indicates previous alarm activation
• Advanced diagnostics support via cable (sold separately)
• BS 50292:2023 recommends: CO alarms are installed in any room with a fuel burning appliance e.g. kitchen, living/dining room, bedroom
• Designed for use within social housing and private rented properties
• Tried and trusted products – Our alarms are calibrated and tested in real carbon monoxide gas