Gauges allow checking parameters such as battery voltage, acceleration position. Not all cars have prepared gauges, so if menu is not active it means that your car doesn't have it at this time. Follow the instructions to access the function:
on picture of vehicle to open car menu.
device must be connected to display live parameters from vehicle.
one of displayed gauges.
displays the live parameter.
the description of gauge.
button to display the live parameter in bigger font size.