viessmann room influence devices

[monkeysballs]

so i have a 200-w combi and its great but especially on a night it heats the house more than it needs even with a low setback obviously the outside is likely far colder so it still trys to heat but the house hasnt lost anywhere near enough so even trying to do 14c setback it just slows the cooling of the house down and likely never gets below 19c and often maintains it at like 20 so the temp i want during the day

i see there is an option for room influence to work with weather comp and think this could be handy but what device do i need? in the vicare app it lists a vicare climate sensor it just looks like a wifi or zigbeee temp and humidity sensor but i cant find any info when i google or do i needs something more involved (their cust service leave alot to be desired )