@e-maddin - here is a link to a post where another user found a 220V power supply that worked in Europe (YMMV) -> Source for European power 220V/24V AC supply for Rachio - Amazon.de and Poland
The requirements are 1 Amp (or 1000 milliamps) 24 V AC. The straight line on the output is DC, versus the wavy line on the input is AC.