These FAST gauge pressure sending units are compatible with FAST XFI and FAST touch-screen dash/data loggers and are designed for harsh automotive environments. They allow you to monitor vital pressures throughout your powertrain. Fuel, oil, and nitrous pressure are just a few examples of how they can be used. The sending units feature a stainless steel body with 1/8 in. NPT thread and include a sealed mating Weatherpack connector and terminals for installation.