I take it with me on business trips, convenient, mobile, in a case.
There is an application for taking into account pressure parameters, although for this you need to take a photo of the tonometer screen.
There is a reminder on the cover of the case how to hold your hand correctly to measure the pressure, if you hold it higher / lower, then the difference in pressure is visible.
For the experiment, I also took measurements with a large tonometer with a cuff on the shoulder - the discrepancy betwSee full review