UltraGauge is both an OBDII Scan Tool and an Information center that displays selectable engine gauges. UltraGauge displays a possible 78 gauges, such as RPM, Engine Temperature, Intake Air temperature, Distance, Intake Pressure, Mass Air Flow, and many more. UltraGauge can display an assortment of mileage gauges including Instantaneous MPG, Average MPG, Trip gauges, gallons per hour, and more. UltraGauge can scan and read vehicle trouble codes and can even display potential trouble codes. UltraGauge provides customizable alarms for every gauge. UltraGauge is compatible with all 1996 and newer gas vehicles including RVs. UltraGauge is standalone tool and needs no PC or PDA to operate. Best viewed with Internet explorer 8 or newer or Firefox. Top Gear, BBC America, Discovery HDT, Mecum Auto Auctions are registered trademarks of the corresponding enties, UltraGauge has no direct affilation with any of these entities.