Ei Electronics Ei204EN Carbon Monoxide Alarm review
Test score %
You can expect six years of service from the Ei Electronics EI204EN Carbon Monoxide Alarm before you need to replace it – but can it be trusted to alert you to the potentially deadly effects of a carbon monoxide during this time? Our test results reveal whether the Ei Electronics carbon monoxide detector can be relied upon to recognise and clearly warn you about a build-up of the poisonous gas.
- Pros and cons
Make smarter choices
How to choose a carbon monoxide detector
How to choose an effective carbon monoxide detector that you can trust - find out about the different types and how to choose a safe, user-friendly model.
How to install and test carbon monoxide detectors
Ensure your own and your family's safety by installing carbon monoxide alarms correctly. Our Which? experts reveal the right place to fit carbon monoxide alarms to ensure they stand the best chance of detecting killer CO gas.
Carbon monoxide symptoms
The key carbon monoxide symptoms explained. Find out the tell-tale carbon monoxide symptoms and what to do if you think there's a carbon monoxide leak.