Bill..We have this one
http://www.aeroforcetech.com/index.html They are local folks. Developed by a couple of NASA Engineers whose specialty is telemetry. It is a single , easy to read guage that plugs into the PC port under the dash and reads all of the trucks PC parameters. iT also has a EGT pick up that requires a sensor to be installed...Mine pre turbo... Very handy device.. There are other brands and devices///This one is simple and I am simple.