Multi-Function Digital Vent Gauge. Raxiom's Vent Integrated OBD2 Multi-Gauge allows you to monitor all of your Super Duty's engine parameters in one easy to use digital gauge. By closely tracking your engines critical systems you can ensure that your truck is performing at its best. Designed to install in your truck's driver side HVAC vent, for a super clean integrated appearance, the Multi-Gauge will not obstruct airflow. Raxiom's Multi-Gauge is ideal for all drivers who like to keep a close eye on their truck's health.System Monitoring. Raxiom designed their OBD2 Multi-Gauge to monitor your truck's systems in real time. With the Raxiom Multi-Gauge you can monitor your coolant temperature, air intake temperature (AIT), ignition timing, battery voltage, throttle position, raw uncorrected speed, as well as exhaust gas temperature (EGT). The OBD2 Multi-Gauge you can also record and play back 15 seconds of data directly from your PCM. With record/play back and a peak recall feature, the Multi-Gauge is ideal for trouble shooting problems on the fly.Boost / Vacuum Pressure. Not only does the Multi-Gauge monitor all of your Super Duty's critical systems, but it also monitors your Boost and Vacuum Pressure as well. Using the live data pulled from the OBD-II diagnostic port the Multi-Gauge can accurately measure your truck's intake manifold pressure.Reads/Clears Codes. The Raxiom Vent Integrated OBD2 Multi-Gauge works as a diagnostic code reader giving you the ability to read and clear your own trouble codes. Save yourself hundreds of dollars each year by reading and clearing your own codes rather than paying a dealer to do the same thing. It's as easy as a few simple steps.Measure 0-60 Times. Another really cool feature of the Raxiom OBD2 Multi-Gauge is that it allows you to measure your 0 to 60 elapsed times. By keeping track of your 0-60 times you can see