A less than ideal user experience has come to our attention when using Frequency counting with BNC+ probes (for example, when loading the Digital Air Mass Meter guided test):
After selecting setting up for Frequency counting with an attached x1 BNC+ probe and clicking Run you will be presented with a Probe mismatch dialogue saying that the x1 BNC+ probe is not compatible with the channel settings.
To continue with the selected settings and probe, click on the x1 BNC+ probe under the "Probe found" column in Probe mismatch. You will then be presented with a dialogue in which you can select Hz, to continue (see attached GIF).