Temperature Floor probe, how to input to Idratek?

Hi All,


Not had to do this before, apologies if this has been covered before, but how does one take in a 2-wire floor temp probe into Idratek?
https://www.youtube.com/watch?v=sHo_V3YqzYM

(also how does it work, as I suppose it can't just be a digital input, I guess it's a resistive graded input of some description)?

Thanks in advance,

Marcus