Petrol station digital tyre inflators - reliable?

[Stealer Of Souls]

Just wanted to get peoples thoughts on the digital tyre inflators at the good old sevice stations.
How reliable are they?
Accuracy?
Consistency?

[pc]

Pretty good. I always check gas station's pumps with my own tyre guage and the digital ones seem to always be accurate to within 1 or 2 psi.

[Ae92typeX]

Ideally the should be checked and calabrated, but as above, ive never had an issue with acuracy around my area.

[Cahuna]

Depends when it was calibrated - I set the one at my (then) local Mobil to 33psi when I checked it with my own gauge the tyres were at 40psi. Pumps at other stations matched my gauge pretty closely so this one was just a bad egg.

However, you can't beat a good tyre pressure gauge of your own.

[Dragger_Dan]

That's if you're lucky enough to find a servo with a working compressor. Went to pump a tyre up the other day, the 5th gas station I went to had one that worked.

[no_8wire]

Your gas stations have digital meters!

my locals are still the good old mechanical dial type

[method]

Mobils have digital meters, a monkey could use them. They are pretty shweeeet

[Stealer Of Souls]

Ha ha...

Not the response i was expecting. Bit of a trick question. I just lined up the local BP against my tyre gauge. And I wanted to see other peoples experiences.
I've lined my gauge up against a calibrated pressure gauge and it came out with a +0.5 psi error, but was accurate to 0.1 psi (resolution is only .5 though ).
Yeah the local BP was good to within 0.5 psi. And I used one in Taupo which was pretty much spot on!