Sorry Vincent, I forgot to say, when using the api https://api.openweathermap.org/data/2.5/weather?id=1234567&APPID=my_key-1-32&lang=de&units=metric
i get this
{
"coord": {
"lon": 9.00,
"lat": 48.00
},
"weather": [
{
"id": 800,
"main": "Clear",
"description": "Klarer Himmel",
"icon": "01d"
}
],
"base": "stations",
"main": {
"temp": 24.41,
"pressure": 1012,
"humidity": 22,
"temp_min": 24,
"temp_max": 25
},
"visibility": 10000,
"wind": {
"speed": 2.1,
"deg": 160
},
"clouds": {
"all": 0
.........
I found your post to UoM here
https://community.openhab.org/t/list-of-units-in-the-uom-unit-of-measurement/46842/6?u=fibu-freak
and understand what is meant with Number:Temperature Test_1 "Test1 [%.1f K]"
Thanks again