This Sparco analog tire pressure gauge is extremely accurate with an easy-to-read 4-inch display. It comes with a flexible pressure line, an anodized aluminum grip, and a protective rubber boot. Supplied in a protective case to reduce the risk of damage in transport Protective rubber boot in case the meter is accidentally dropped. Pressure release valve to quickly adjust your pressures Perfect for motorsports use Gauge reads pressures in psi and bar. The protective rubber boot provides protection from bumps and bangs when the gauge is used during a race weekend or at home. Pressure range: 0-36 psi / 0-2.5 bar