@Beeberg, sent u an email on ur query 
@all, Well frndz I installed the system in my coure and tested it on GT Road 2 Lahore and on motorway on my way back. FOund it extremely useful. There were couple of occasions when the audio warning alongwith red light came on. We stopped @ the nxt oppertunity and got the tyre pressure checked and everytime it was found 2 b less than required so we got it inflatted and traveeled along.
Throughout both the journeys my son helped me take the pressure and (tyre's inside air) temperature readings after almost every half an hour. They seemed 2 b working perfectly as there was variation with speed & time (including when car was parked so the temp was supposed to drop, it did).
I took some pictures of the system indicating tyre pressure one by one of all four tyres plus one which is showing temperature of # 1 tyre.
Then on 15th Sep during the Isloo meet I had the owners of Automotivedevices.com with me and we had a system on display as well.
We also checked the efficacy of the system when @voyager started deflating the tyre and soon we heard the audio warning and the red indicator light came on so we stopped and inflatted the tyre again and not only it showed the pressure again but also the warnings went off. So it does work.
There r few PW mwbers who r acquiring this system, good luck to them all and safe driving.
