Well, like RoseyReps, I didn't quite get your 'procedure' but I'll tell you how I did it.
I used an IN/OUT Thermometer with Hygrometer,(Click here for a BP.Net famous mod on this and similar models), and placed all three probes (IN temp, OUT temp, and Humidity) inside the tank (In for the hot side, out for the cold side and the humidity near ground level around the center of the enclosure). However you can do it any way you like, as long as you keep track of which probe is in which side of the enclosure.
Sorry if this doesn't make sense, I'm a bit tired