• Professional mechanical pressure gauge with durable brass Bourdon tube construction. • No batteries required for operation, always ready to use. • Legible 2-inch dial that glows in the dark for easy nighttime measurements. • Thicker and stronger 360-degree rotating chuck for operation in different directions. • Extended air nozzle that fits securely with the tire valve to prevent leaks. • Dual scale range up to 4 Bar / 60 PSI. • Compatible with bicycles, motorcycles, cars, SUVs, and ATVs. • Accuracy compliant with ANSI Clase B40.1 standards.