Winters 2-1/2" Dial Size, Liquid Filled Industrial Pressure Gauge, Brass Internals, 304 Stainless Steel Case, Single Scale 0-60 psi, 1.5% Acc, 1/4" NPT Bottom Mount, Glycerin Filled Pressure Gauge

I use a trigger style air gun and swapped the pressure gage with this from Amazon. It's accurate, but a little slow on the needle movement. 60 psi gage puts the average tire pressure in the sweet spot of the gage where it has the highest accuracy. https://www.amazon.com/dp/B0087UYBRS?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_8&th=1