La Gasser wrote:
I've tried several over the years, but the best & most accurate has been a Accutire Model MS-4021B Digital Gauge - I've had one for well over 10 years & just recently ordered another one for $15 direct from the company with free shipping.It reads a range of 5 to 150 PSI in 1/2 lb increments. It works great on single wheels, but not on dual wheels due to the valve stem angles. I use a Acme Truck Digital Angled Dual Foot Tire gauge model A567 for my dually. It reads from 2 to 150 psi in .1 tenth increments.
You can get the same gauge from Amazon Prime (free shipping) for $9.99.
I'd always suggest that you check tires with two different gauges. If there is more than a 2-3% difference, you need to compare the gauges to a tire store's reading to make sure they match.
Jim