Tru-Flate 17-525 Tire Gauge, 20 to 120 psi, 2 lb Accuracy | For use on dual wheels and other difficult-to-reach valves. Short enough to fit in your pocket yet has a wide enough range to handle both cars and trucks. Calibrated 20 to 120 psi in 2 lb units and from 160 to880 kPa in 20 kPa units.