acu rite humidity and temperature controler

[Inknsteel]

You put the probe under the hot side hide, put the unit itself on the cool side. The probe will measure hot side temps as "Outside" and cool side temps and humidity as "Inside".

EDIT: Also wanted to clarify, the Accu-rite is not a temperature CONTROLLER as your post title states. The accu-rite is a thermoMETER, only used to measure temps, not to control them.