That's what I thought it was for. I'm having trouble getting my radiant heat panels running perfectly.
You can't put the probe on the ground. When they lay on. The RHP will run full blast for who knows how long.
On top of the paper like that I don't see how itd make sure the floor was the right temp.
I've got my probe on the side of the wall close to the floor. And its working ok. Still trying to fine tune it. That way they can't lay on it.
I've also heard people putting the probe on the cool side. And with bloods setting it at like say 80. And saying the hot spot would be the 88ish temps. But I'm unconvinced.
How's your setup working for you?
Sorry for the long post.