ARM is developing any item for All Co-Drivers.
Right & bottom item is
ARM Bluetooth Unit
This item connect with your iPhone and Car's ECU.
Please using this unit if you want more accuracy about ARM's distances.
I'm starting the test on some car.
Upper item is
ARM Trip Meter
This is not going to release in near future. Because this is made by extra pats for making "ARM Bluetooth Unit".
But if I receive a lot of request about it, I think about it.