Can confirm that this is working. So my next question is: 
Instead of notification “Temperature is above 27” id like “Temperature is [exact value]”. For notification I’m using HTTP GET method. Text is URL Encoded.
I tried something following this ([SOLVED] HttpGet rule with variables - #15 by vzorglub) but not ok.
Logs show:
Rule ‘Living Room Temperature above 27 °C’: Illegal character in query at index 139: http://xxxxxxx/...&text=**Living%20Room%20Temperature%2027.09 °C**
The problems is clearly second part as it is not encoded. Well I just added “+ TempLR.toString” to my request. Guess need something other.
Thank you,