Tiremoni TM-100

Anyone who has been on a road trip in Namibia will testify that punctures are the ruin of the entire trip.
This liitle gadget has 4 valve caps that monitor your tyre pressure and transmit wirelessly to a display mounted on your dashboard. You can see the pressure on each tyre at a glance, thereby avoiding those dreaded side-of-the-road puncture repairs. Available in a 6 tyre version too.