Tyre Pressure Gauges?

look for one that has a calibration certificate (if this exists with commercially available gauges) or specifies accuracy.............but then again what and how do you check it against. Typically....

A few years ago I had access to calibrated pressure testing equipment.I cobbled together a rig for testing tyre gauges, then purchased several. I also had a couple of old ones in the garage, and borrowed some.

None of those I tested read incorrectly by massive amounts, but cost was not apparently a factor in their accuracy.

The best one was within around 2% over the range of around 5 to 40psi, with perfect repeatability. It was the cheapest digital one that Halfords sold at the time! It didn't even have a replaceable battery.

I'm still using it; not sure what I will do when the battery eventually fails :-)

Chris

I bought a digital one from Wilkinsons for about £10. It agreed with the mechanical gauge/inflator we had in the hospital workshop for blowing up wheelchair tyres so I assume it is reasonably accurate.

For what it's worth, that particular fared very badly in the Auto Express tests..

The message from "Mathew Newton" contains these words:

Should do. I doubt it'll have spare bulbs on board, but any car shop or garage will sell you the right sort.

Paul Hutchings wrote in news:paul-185510.15263319112006 @east.Usenet-News.net:

I've always used one of those old ones you press on and the thing pokes out in the middle with a scale on the side. Seem to be fairly accurate to me, but I've never researched it.

I used to also until I read this:

"Darren Griffin - PocketGPSWorld.Com" wrote in news:45618263$0$8713$ snipped-for-privacy@ptn-nntp-reader02.plus.net:

An interesting read.

Thanks to everyone who replied.

I think I'm going to get one of the Longacre gauges from Demon Tweeks - they don't seem overly expensive and lots of the race/rally/motorsport stores seem to carry them which suggests they are quite good (the info on the Longacre website also suggests they do decent kit).

cheers, Paul

Mind your quoting please.... I never said that!

(and certainly not in this thread!)

Mathew

The message from "Mathew Newton" contains these words:

Oooh, I wonder how that happened. Zimacs has never done that before.