Good form - all metal - always works, because without battery ;-)

The same design and all-metal design have convinced me of this tire pressure gauge. I have the tire pressure gauge specifically added myself for long-distance travel, to hold the Schwalbe Big Apple used by me plus a constant value of 2.5 bar. The arrival and Ab setting the auditor is very simple, the measurement needle stops at the measured value. One press of the button is enough housing to the examiner wierder reset to zero. Material and design make the impression of a 60s workshop quality, reasonably treat the thing should last forever. Comparative measurements at my gas station with 2 different tire pressure fillers yielded identical values. Unbeatable for the price.