Kensun Digital Tire Pressure Gauge - Red Digital LCD lighted display screen instantly shows clear and accurate readings. Illuminated nozzle make it easy to use even in complete dark. Designed to fit comfortably in the hand. Non-slip surface. Simple one-button design. The perfect size to keep in your glove compartment or tool kit. Four pressure range settings: PSI, Bar, Kpa or kg/cm. Monitor Pressure from 0.5-100 PSI in 0.5 PSI increments Low tire pressure results in decreased fuel economy, poor tire wear, poor vehicle handling and can be dangerous. Experts recommend checking your tire pressure at least monthly. Lengthen tire life and safety by maintaining tire pressure for cars, trucks, motorcycles and bicycles. Nozzle seals to valve stem for quick and accurate readings. 30 Second auto-shut-off.