Just as pictured below. A love TCS-4010 Temp Controller and probe. The brass adapter is included as well. Essentially screw the 1/2" MPT adapter into your connector of choice, and the 3" probe screws onto that. The probe has what I estimate is 5' of cable attached. I never used the controller to actually control anything, it was only used as a digital thermometer to read the temp of the HLT.