FA3820 Carbon Monoxide Detector, 10-Year Life Sealed Battery Carbon Monoxide Alarm for Home and Travel, Portable CO Alarm Monitor, 1-Pack

Very smart little unit with a great recommended brand name, it's just another " peace of mind " bit of equipment that you hope is never activated. the test button is easy to use and lets off a sharp loud noise that is different from the smoke alarm mounted near it. A 10 year battery life is excellent for the continued protection that this detector gives, to pass the BSS on boats its the law to have one fitted, should be the same for homes. IT WILL SAVE YOUR LIFE AND LOVED ONES should any carbon monoxide be detected.

Like the 10 year life but not had it 10 years yet and it has never gone off. Guess its a matter of trust!

Pleased with item is as described.

After nearly forgetting a portable CO detector on a cabin trip, I installed this FireAngel FA3820 unit in my bedroom and now travel with it. Setup took seconds: placed it upright on a shelf (free-standing) and later wall-mounted using the included bracket. The 10-year sealed battery was the key selling point – no battery anxiety. The Positives: The electrochemical sensor provides critical accuracy – it triggered a "ventilate" pre-alarm during a malfunctioning heater test (before dangerous levels accumulated). The 85dB alarm is piercingly loud (audible through closed doors) with a blinking red "CO" light for visual alerts. Alarm memory proved invaluable after a brief CO incident while I was out – the flashing light alerted me immediately upon returning home. The compact, lightweight design (95g) slips into luggage effortlessly – I’ve used it in Airbnbs, tents, and ferries. Third-party certifications (Kitemark/BSI) and CE/UKCA marks validate its reliability – non-negotiable for life-saving gear. Minor Considerations: - Wall-mounting requires precise placement (per manual) to avoid false alarms from dust/steam – my first attempt near a bathroom triggered unnecessary alerts. - No smart features like app alerts (expected at this price, but the core function is flawless). - "End-of-life" beeps are identical to low-battery chirps on other devices – could cause momentary confusion. Overall Experience: This detector inspires total confidence. The 10-year battery eliminates maintenance hassles, while the travel-friendly size ensures I never leave protection behind. It balances critical sensitivity with false-alarm prevention when positioned correctly. For homes and travel – especially with gas appliances or attached garages – it’s indispensable. Recommendation? An emphatic yes. Every household and traveler should own one. Final Thought: Uncompromising safety tech that’s earned permanent spots in my home and go-bag.

Does exactly what it says. Bought Fire Angel as advised by our chimney sweep. We wanted one we didnt have to worry about batteries wearing out, so went with the 10 year battery. We were advised to position at head height in the room so have it just above the door architrave. Easy to install, it comes with wall plugs and screws and just sits onto the screws. Alternatively you could attach with a sticky pad (not included) It is very sturdy, doesn't feel cheap and knowing the brand is good, we now feel safer using our multi fuel burner with it in place. Now we need another one near our gas boiler which is inside a wardrobe in the main bedroom

good idea thank you .

Works well

very good

The fixing screw holes are very small, the previous models had proper size, also the volume is not too loud ( hopefully just the test is this quiet)

Hopelijk nooit nodig te hebben maar apparaat voelt prima aan en makkelijk in gebruik. Je kan hem ophangen of neerzetten.

Compact. Clear instructions. Easy to install. Like any similar alarm, almost impossible to know whether it really works since it does not give a realtime measurement of CO concentration. But since I have not been affected by CO poisoning since installing it, I’ll give it the benefit of the doubt.

Wygląda nowocześnie i jest bardzo prosty w obsłudze. Plus za to że dźwięk Testu jest cichszy od samego alarmu czyli nie piszczy w uszach po tym jak się go sprawdza raz w miesiącu

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