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

4.4 (28 reviews)
SKU: 240301125757013 EAN: 0816317006044

Compare 1 price for FireAngel 10 Year Carbon Monoxide Alarm - Sealed for Life Battery FA3820 Twin Pack — from £49.99 across 1 UK seller including Screwfix.

£49.99 7h ago
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Advanced electrochemical sensor and pre-alarm warning. Intelligent algorithm for heightened sensitivity, providing a rapid alert. Memory function indicates previous alarm activation. • Quiet test function supports discreet testing at a lower volume when compared to standard CO alarms • Advanced diagnostics support via cable • Prominent visual alarm notification • Certified to BS EN 50291-1:2018 and BS EN 50291-2:2019
Brand FireAngel
Colour White
Item Weight 0.95 kg
Item Width 12.5 cm
Model FireAngel FA3820-T2
MPN 25102
Number of Batteries 2
Power Source Battery
Type Carbon Monoxide Detector
No features listed
No items listed

Customer Reviews 28

4.4
28 reviews
5 star
19
4 star
6
3 star
0
2 star
1
1 star
2
Does the job!
5.0
October 20, 2025
Stu1001 Verified Purchase

Does the job and despite what some reviews say, fixing screws are included.

Quality Alarms
4.0
April 5, 2025
Habibul Verified Purchase

Co2 Alarms. Was told by my friend who services boilers to buy this make.peace of mind for 10 years as got sealed batteries.i’ve placed these alarms in the rooms that have gas heaters

Fire Angel monoxide monitors
5.0
March 13, 2025
BRowley916 Verified Purchase

A good product, very easy to install and good for ten years in our rental property.

Carbon Monoxide Alarm
4.0
January 20, 2025
Selfit Verified Purchase

Nice compact design. Bought in addition to and compliment smoke alarms

Great Pack
5.0
October 11, 2024
Glu Verified Purchase

Replacements for outdated models to maintain fire safety standards, with a brand I find excellent. Reliable and fair price, neat appearance freestanding or on 2 screws fixed to wall, and no need to keep changing batteries for 10 yrs!.

Carbon Monoxide alarm
5.0
July 8, 2024
Active old man Verified Purchase

After being wakened by a blaring alarm at 2am and to see that the 10 years life was ended it was a great relief that we could so easily get a replacement in Toolstaion without having to shop around after a sleepless night! We are very happy with the product and can relax for another 10 years!

Failed
1.0
March 20, 2024
Sffer Verified Purchase

Very disappointed, fitted until and it failed on the 1st night. Started bleeping every 2 mins about 2am and didnt stop

FireAngle Carbon Monoxide Alarm
5.0
October 31, 2023
Captain John Verified Purchase

Great value for money.
Easy to use and standalone, fitting-in like an ornament.

Let down by lack of information about fixing screws
4.0
June 22, 2023
Grandpa Fixit Verified Purchase

No problem with the unit apart from the lack of wall fixing screws, as reported by other reviews. The the sales information does not give a recommended screw size and head type.

Great value
5.0
June 22, 2023
RMacL Verified Purchase

Great price for a pack of 2! Very easy to set up and use.

easy to install
4.0
May 13, 2023
Moon P Verified Purchase

nice with built in battery for 10 years so that you not have worry about that.

CO Alarms
4.0
May 8, 2023
Drip 5 4 3 2 1 Verified Purchase

Unable to give 5 stars since I don't have a reliable source of CO to check them with. The gadgets tested OK so - here goes !

Nice little alarms. Thoughtful test facility.
5.0
March 29, 2023
Him in the corner Verified Purchase

Easy enough to fit but picky on the size of screws. Nice touch that the sounder test is at reduced volume (you can do a full volume test if you don't mind loosening a few tooth fillings). Twin pack is a nice touch

Co alarm twin pack
5.0
March 15, 2023
Alexisj7 Verified Purchase

Great item and best value we have found all round - we checked all different options and these seem to fit the bill

Expensive but don't want to take a chance with carbon monoxide
4.0
March 7, 2023
Susan9636 Verified Purchase

These are now very expensive due to inflation but it is a necessary item. Ps you don't get screws included so make sure you have four small ones.

Great
5.0
March 7, 2023
Janerw Verified Purchase

Great product, would recommend especially as its cheaper thn buying separaately.

Carbon Monoxide alarm Test
2.0
March 4, 2023
Juliano Clark Verified Purchase

Takes far too long to test the alarm when compared to my previous alarm.
You have to press the button for around 50 seconds at which point you let go of the button thinking it's not working so you press the button again for a longer period. It doesn't give confidence that the alarm is working.

Very efficient!
5.0
March 2, 2023
Harley Rider Verified Purchase

Straightforward online ordering at a competitive price. Prompt dispatch and delivery. Recommended *****

Excellent product excellent value
5.0
December 10, 2022
Little Mac Verified Purchase

Excellent product great value

5.0
November 8, 2022
Robert Stone Verified Purchase
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