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How reliable are the notifications?

The results of the field test that looked at the technical operation of the CoronaMelder app showed that for encounters that lasted for longer than 15 minutes:

Of all the test notifications sent during the field test, 60% were sent to people who had been more than 1.5 metres apart. This high number is due to the fact that a relatively large number of people in the test group (80%) were more than 1.5 metres apart. Of those in that group who received a notification, most were within 3 metres. The encounters always lasted for more than 15 minutes.