Easy to read digital display. Correct tyre pressures prevent premature wear and damage to tyres and give greater fuel economy. Pressure range: 0-150 PSI or 0.15-10 BAR. Automatic shut off. Accuracy: ?1 PSI. Operating temperature range: -20 to 40°C (-4 to 104°F). Uses 1pc CR 2032 battery (included). Saves fuel and improves safety.