ScanGauge II Automotive Computer

If your (North American market) car is a 1996 or newer model, you can plug this gadget into the wiring harness and have a car 'computer' that displays rpm, mpg, coolant temperature, distance to empty, maximum speed, battery voltage, intake air temperature ...
Installation involves plugging the connecting cable into the wiring harness under the dashboard. That's it! $170.

Thanks Gizmodo and ThinkGeek

Categories: Cars Gadgets