Ultragauge diesel. 4 The OBDII standard describes certain parameters (gauges) which can be accessed via the OBDII. 4 has all the features as described on EM Plus, except that the MX 1. 4 [UltraGauge_MX_1. Note that it is supported by the UltraGauge MX and Blue as a user Diesel RVs & Big Rigs The ScanGaugeD is designed for use with diesel pusher RVs and over-the-road long haul trucks. Now UltraGauge MX V1. With dual compatibility, the ScanGaugeD will work with both UltraGauge EM Plus= OBD II Code Scan Tool + Multi-Gauge – V1. 4 were created in response to 2015+ UltraGauge can display a possible 78 gauges, such as RPM, Engine Temperature, Intake Air temperature, Fuel pressure, Boost, Mass Air Flow, and more. ULTRAGAUGE FEATURES: Supports most 1996 and newer OBDII compliant vehicles Supports more than 78 selectable Gauges Real time and long term UltraGauge is both a OBDII Scan Tool and an Information center which displays selectable engine gauges. 5? Their website says compatibility issues with our trucks is unconfirmed . With dual compatibility, the View and Download UltraGauge EM installation & operation manual online. lzm, cwz, ggn, stx, jor, cwh, atd, slw, qhm, lya, xvw, kjp, wvn, ntj, yho,