The Track Hack acquires A Tyre Dog!
The battery powered sensors screw on the to the valve stem (in place of the valve cap) and transmit back to a hand held visual display unit which shows tyre pressure and / or temperature by wheel. It is configurable to alarm if either temperature or pressure move outside pre-set upper or lower limits and to define imperial or metric measurements. For in car installation for road car touring purposes, the Tyre Dog comes with a range of dash / windscreen mounts.
Detailed specifications can be found on the TyreDog website.
A fellow GT3 owner has one and used it most successfully on a recent road and track trip to South Australia. My first practical test will be Presidents Day at Sandown on Sunday. A useful tool to obtain a more consistent track performance is the objective.