Product review (5 stars): Hard to find meter with probe
Sorry to see this item out of stock.  It cheaply solved a pesky problem for a solar installation.  (See my review of 8" duct fan)  We needed a meter that would give us the ambient air temperature, and the temperature inside the solar duct work.  The probe with this unit was perfect in that we could place it inside a short length of vinyl tubing and silicone it into the duct.  It works perfectly.  It is in C' not F'  but not a problem with a little conversion chart mounted next to the temp/humidity control.  Perhaps this will be restocked soon, it is a great little unit.