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TRU-FLATE tire pressure guages are made by Stant. If you search the Web for
"Tru-Flate" you will find several stores that sell them. I have been using a
digital tire guage (like the one originally suggested on Soh Chio's site) up
until now to calibrate my pressure sensor (which I bought on e-Bay), but the
TRU-FLATE dial looks a better approach. I have also been using the RCX and a
pressure sensor to measure the effectiveness of different pump designs. I'll
post the results when I have finished. I think Soh Chio's Web site is great!
In lugnet.robotics, Soh Chio Siong writes:
> Gaurav Thakur wrote:
> >
> > BTW I was just browsing your website (really great site BTW) and had a
> > question...do you know what type of pressure gauge you used on the creation
> > on the main page? I've been trying to find an air pressure measurement
> > device which works with the Lego pneumatic system for some time now but have
> > had no luck...
>
> Well, the markings say "TIRE PRESSURE GAUGE" at the top and "TRU-FLATE"
> at the bottom. It reads to 60 psi. No other markings to indicate its
> manufacture.
>
> It came courtesy of John Barnes together with the pressure sensor. The
> inlet has been specially modified with a nozzle that will nicely fit the
> Lego pneumatic tubing.
>
> I think it is better than the Monkey Grip digital tire pressure gauge
> that Michael Gasperi is using as it can provide continuous readings. But
> I wouldn't rely too much on it as its accuracy is far short of the
> silicon pressure sensor.
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