It's an Android OBD app called Torque Pro with a bluetooth OBD interface plugged in to the car's OBD port - https://play.google.com/store/apps/details?id=org.prowl.torque&hl=en_GB
Nice app. In addition to the dials it allows you to do some basic diagnostics/read codes in a pinch.
Just a question mate. Do you leave the OBD always onto the car's OBD port?
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