We use cookies to allow us and selected partners to improve your experience and our advertising. By continuing to browse you consent to our use of cookies. You can understand more and change your cookies preferences here.

König SAS-HA100 review

Product alert

Don't Buy this heat alarm – it failed to detect rises in temperature in two of our five tests

When set the task of sensing rapid rises in temperature, this Konig alarm failed twice and its battery also failed to sound when it was running low.

Based on these test failures, we don’t think it’s 100% reliable and that’s why we’ve made it a Don’t Buy. König told us that it would investigate with its quality team.

Further reading on heat alarms in our smoke detectors review

Take me to reviews of Best Buy smoke alarms
Find out how we test smoke alarms
£8.00 Typical price

Test score %

Key features
  • Heat alarm
  • Heat alarm
Reviewed

The König SAS-HA100 heat alarm is designed to detect rises in temperature, but in our tests it failed to do this twice and that’s why we’ve made it a Don’t Buy.

Included in our expert review
  • Pros and cons
Try Which? for £1
You can cancel at any time

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

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.

Make smarter choices

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
Try Which? for £1
You can cancel at any time

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.

    CompareRemove all products