Tire pressure gauge

[cchase]

Just in case others read this in the future:

There were two problems with my digital gauge. One was that the results were not very repeatable. It was annoying enough it got stashed away for a number of years. Last year I dug it out again and planned on giving it to someone to keep in their car - but, it was still very erratic in its readings. I actually ended up going out and buying a dial gauge because it kept saying a tire was 15 psi low, then 7 psi low, then 5 psi high, etc.

I called Griots Garage to see what might be going on and the customer service rep mentioned that if the battery was low, it could read erratically. The problem is that the battery is not "user-serviceable" on these units. However, the rep told me how to take it apart and replace the battery. Did that, still didn't work.

Of course Griots Garage is always a pleasure to deal with and they refunded the purchase price (which was a number of years ago).

 

[Ken2]

I bought a Milton tire inflator with its built in gauge a year ago. I compared that with the six or eight dial, pencil, and electronic gauges I had in my tire junk bin. All were within 1 psi except one pencil (tossed out) and the Milton, which was 3 psi low from all the rest. Milton told me that it was within their tolerance limits---but it wasn't within my limits. They said that it wasn't user serviceable, but I took it apart and got it consistently within 1 psi of what I think is correct. My old Accutire electronic gauge remains my favorite.

 

[weebl]

http://www.pcltireinflation.com/Media_Products/EN/Downloads/89865680_Tire_Pressure_Gauges.pdf

They have gauges that are certified to be accurate within +/- 1 psi. Compliant with a California standard for gauges to be within 2 psi, and also compliant to a similar European requirement. Haven't found those claims from any other gauges on the market (though I'm sure some others must exist).

I bought the TPG4H01 this summer for about $20 from a local mobile supplier to the tire industry. I needed a gauge capable of 65 psi for my trailer. A bit of work to find it, but I am glad I did. I remember my dad had a passenger version of a PCL gauge when I was a kid, but have no idea if that gauge is lying around somewhere anymore.