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Ei Electronics Ei100B Smoke Alarm review

£9.00 Typical price

Test score %

Key features
  • Smoke alarm
  • Ionisation smoke alarm
Reviewed

The Ei Electronics Ei100B smoke alarm comes at an attractive price and is backed with a five-year warranty but there’s no escape light on this model. To find out how quickly this alarm responds to smoke, we tested it. Our verdict on how well this alarm detects smoke is based on how it responded in the presence of smoke from four different test fires. Read on for the results of our tough tests and our full review of this EI Electronics smoke alarm.

Included in our expert review
  • Pros and cons
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Test results

The overall Which? test score is made up of the following star ratings, all determined by our rigorous lab tests.

Find out how we test smoke alarms
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We have tested 27 smoke alarms and found that there are 7 Don't Buys and 4 Best Buys.
Range of Smoke alarm scores
  1. 0%
    Lowest score
  2. 46%
    Average score
  3. 93%
    Highest score
We'll show you where this model sits on the scale so that you can see how it compares to smoke alarms we've tested
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Put us to the test

Our Test Labs compare features and prices on a range of products. Try Which? to unlock our reviews. You'll instantly be able to compare our test scores, so you can make sure you don't get stuck with a Don't Buy.

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