Works, but not for normal / Dunlop valves suitable

Contrary to what one other buyer, it is very well for Presta valves (also Presta, racing, French called). However, it is not suitable for Dunlop-valves (also normal, German, called flash). After consideration of the basic design, I doubt whether it could be such a passive device. Nevertheless, this statement belongs to the description of the device.

It is set up a little fiddly. Sclaverandventil screw completely and loosen the brass screw on the measuring device so far that the internal rubber seal fits over the valve. Solid and press on evenly.

Schrader valves (Schrader also called) are also going according to the description, but I have not tested. Therefore you have to remove the thumbscrew.

Difference between the measurements I could not tell.

My thanks to the authors of Wikipedia for the many synonyms.