The one with the unit is
You need an
As you know, your picture shows a 230vAC to DC output. Proclaiming my ignorance of overseas voltages, you should locate a “wallwart” that is ???vAC to 12vAC, more than 300mA/.3A
Here is a link to information, from Ted Fletcher, on transformers:
I hope this helps and that you have a Happy New Year with your 3Q.