Dashscan is capable of viewing 4 unique vehicle parameters at once, along with a host of other parameters for live data viewing. Two additional 0-5 volt signals can be monitored and recorded through a special analog input. This means you can monitor difficult signals, such as RPM, directly from the vehicle’s PCM without a signal converter or interface. In addition, the analog port allowed you to view other real-world signals such as boost, wideband O2 or exhaust/gas temperature through the use of external sensors sold separately.