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Selecting the Best Carbon Monoxide Detector
How to Choose a CO Detector
When searching for the best value domestic carbon monoxide alarm, three main factors should be taken into consideration:
- The purchase price including delivery costs
- The lifespan of the alarm
- The cost for replacement batteries, should the alarm require battery replacements over its lifetime
Comparison of CO Alarms
We have created a simple overview of the leading CO alarms, listing their prices, lifespan and the cost of batteries required and then worked out the resulting cost per year for each model. This assessment will help you make the right buying choice.
All the CO detectors we listed are certified by BSI or equivalent. We have also shown additional features which might be important to you in your selection process. To help make the data in the table as easy to understand as possible we have included a star rating, which takes into account the cost per year, any additional features as well as the product ratings provided by users of the products.
| Model | Alarm Display | Battery Type | Lifespan (Years) | Warranty (Years) | Extra Features | Customer Rating | Price + Delivery (inc VAT) |
Total Cost Per Year | Star Rating (Based on Features and Cost Per Year) |
|---|---|---|---|---|---|---|---|---|---|
| Kidde 5CO | LED | Alkaline replaceable | 10 | 7 | - | 4.6 | £11.99 | £1.95 | |
| Kidde 5DCO | Digital | Alkaline replaceable | 10 | 7 | - | 4.7 | £14.99 | £2.25 | |
| Kidde 7CO | LED | Alkaline replaceable | 10 | 10 | - | 4.7 | £13.29 | £2.08 | |
| Kidde 7DCO | Digital | Alkaline replaceable | 10 | 10 | - | 4.7 | £15.10 | £2.26 | |
| Kidde 10LLCO | LED | Sealed lithium | 10 | 10 | - | 4.6 | £17.99 | £1.80 | |
| Kidde 10LLDCO | Digital | Sealed lithium | 10 | 10 | - | 4.7 | £16.49 | £1.65 | |
| Kidde 10SCO | LED | Alkaline replaceable | 10 | 10 | Combination CO/smoke alarm with voice warning | 4.8 | £17.50 | £2.70 | |
| Kidde WFPCO | LED | Sealed lithium | 10 | 10 | Combination CO/smoke alarm | New | £23.99 | £2.40 | |
| Fireangel CO9B | LED | Alkaline replaceable | 7 | 7 | - | 4.7 | £16.57 | £2.87 | |
| Fireangel CO9D | Digital | Sealed lithium | 7 | 7 | - | 4.8 | £21.53 | £3.08 | |
| Fireangel CO9X | LED | Sealed lithium | 7 | 7 | - | 4.5 | £19.79 | £2.83 | |
| Fireangel CO9X10 | LED | Sealed lithium | 10 | 10 | - | 4.8 | £26.38 | £2.64 | |
| Honeywell XC70 | LED | Sealed lithium | 7 | 7 | - | 4.5 | £27.47 | £3.92 | |
| First Alert SCO5UK | LED | Alkaline replaceable | 7 | 7 | - | 4.7 | £20.39 | £3.41 | |
| EI Electronics Ei208 | LED | Sealed lithium | 10 | 5 | - | 4.8 | £31.16 | £3.12 |
What is the Best Value CO Detector?
The carbon monoxide detector with the lowest cost and the best overall rating was the Kidde 10LLDCO which contains a sealed 10 year lithium battery and offers a clear digital display and 10 year warranty.
How did we carry out the assessment?
The battery replacement cost assessment was based on £0.50 per alkaline AA battery and £1.90 per 9V alkaline block battery and of course the required number of batteries for each alarm. The battery life per battery was assumed to be 2 years. The star rating was based on a ranking of additional features, such as digital display and sealed longlife batteries, alarm lifespan, warranty, product feedback from previous customer feedback as well as pricing. Please contact the Safelincs marketing department if you are interested in further details of the study, marketing@safelincs.co.uk.
Buy the Kidde 10LLDCO
10 Year Longlife Battery Digital Carbon Monoxide Alarm - Kidde 10LLDCO
- FREE delivery
- Product Lifespan: 10 years
- Battery: Built-in, lasts the life time of your product – GUARANTEED
- Warranty: 10 year warranty
- Displays CO levels from 11ppm
- Reduced sound level test feature
- Kitemarked to BS EN50291-1 (domestic use)
- Also suitable for the 2022 Scottish legislation
4.8 out of 5 stars
View Product
| 1 unit |
£20.48 inc VAT £17.07 ex VAT |
|---|---|
| 2+ units |
£19.88 inc VAT £16.57 ex VAT |
| 5+ units |
£19.52 inc VAT £16.27 ex VAT |
Reviewed: 01/10/2019 (doc:489 V1.0). Our articles are reviewed regularly. However, any changes made to standards or legislation following the review date will not have been considered. Please note that we provide abridged, easy-to-understand guidance. To make detailed decisions about your fire safety provisions, you might require further advice or need to consult the full standards and legislation.