Know exactly what your engine is doing, in real time. ScanGauge plugs directly into your vehicle's OBD-II port and gives you live readings on temperatures, fuel economy, trip data, and fault codes — without the need for a mechanic or expensive dealer scan tool. Clear a fault code on the track, monitor your engine health on a long tow, or just keep an eye on fuel consumption on the highway. Compact, simple, and one of the most useful tools you can have in a touring Landcruiser, Hilux or Prado