The Pyrometer Probe Kit comes with everything seen here which includes all the parts and pieces necessary to acquire exhaust gas temperatures to display on the Mini Maxx, Black Maxx, Triple Dog GT, the Watch Dog, or the PMT (PMT comes with all parts seen above). This kit includes one pyrometer probe which will capture one temperature reading along the exhaust stream. The PCH board, the electronic dock for the pyrometer probe, can accommodate up to two pyrometer probes offering the ability to capture exhaust gas temperatures for two different locations along the exhaust stream. The Bully Dog devices that utilize this kit all have the programming ability to display up to two pyrometer temperature readings simultaneously. Installing a Pyrometer Probe Kit along with a 40420, a diesel Triple Dog GT, unlocks the safety defueling feature for defueling based on exhaust gas temperatures.