P3 Digital gauges provide the highest level of OEM integration and color match offering more features than any other gauges in their segment. Starting at a price competitive to single feature old-school needle gauges, they offer unmatched feature to price ratio. All gauge models include an on-the-fly configuration menu for setting units (BAR/PSI for boost, and C/F MPH/KPH for VIDI values), as well as feature options, and ambient calibration. See www.p3cars.com/install for more details. P3 Boost Gauge Boost and Vacuum with integrated 45psi sensor. Battery Voltage readings with quick-look and sleep-check. Optional Auto-Dim or Manual Dimmer Includes Digital Display, AuxBox w/Sensor, Vac Tubing, Wiring, Wire-taps, Zip-Ties DOES NOT INCLUDE OEM VENT