The M A Horne Professional Digital Tyre Pressure Gauge is used by motorsport professionals throughout the world including F1, A1 GP, IRL, Indy and Australian V8 race teams and many of the leading tyre manufacturers.Used by motorsport professionals throughout the worldAccuracy of 0.1PSI when measuring between 0-30PSIDigital display ensures results are straightforward and accuratePressure Release Valve for over-inflationAuto shut off after 2 minutes for prolonged unit lifeAvailable in BAR or PSIThe M A Horne Professional Digital Tyre Pressure Gauge operates to an accuracy of 0.1PSI when measuring between 0-30PSI, providing ultimate accuracy.The gauge features a digital display ensuring obtaining results is both straightforward and accurate, whilst the pressure release valve ensures that if over inflation does occur, this can be rectified quickly. The unit also features an auto shut off after two minutes for prolonged unit life and dependability exactly when required. The gauge case itsel