Device nickel chrome ... except that provided for German-speaking country!

... I plug in easily;
... Configuration starts alone;
... Patatrac: choice of country = Germany, Switzerland or Austria.

1st test with Austria ==> no chain ... flute!
2nd try with Switzerland ==> any detected chain, but not in order, which required me to the renumbered one by one (easy but loooong).

In use: no complaints, super simple and very intuitive, as I have not read the doc (obviously, since delivered Teutonic ^^).

So I recommend the device, but paying attention to the seller (not a seller Alemagne !!!).