Take the guess work out of tyre pressure readings with this Ridge Ryder Smart Digital Tyre Gauge. Service station tyre inflators are notorious for giving inaccurate readings, which can result in poor fuel economy, compromised vehicle handling and decreased tyre life. With this digital pressure gauge you can make sure you get the pressures exactly where you want them. The gauge features a large, bright LED digital display screen for easy reading in all light levels, and 4 wheel memory to let you save readings for each tyre. With a tyre deflation button, this gauge is perfect for those heading off-road where tyres pressures need to be adjusted depending on terrain. The gauge also features an auto-shutoff after 30 seconds to prevent battery wastage. Measure in PSI, kPa or BAR, up to 100PSI.