Digital Tyre Gauge is a small lightweight device for checking tyre pressure. It is ready for use at anytime without worrying about batteries, though for nighttime use it runs off its battery (it comes with two 3v CR2032 batteries). The Digital Tyre Gauge is accurate to 0.07 bar and has a pressure range of 0.15 bar to 10 bar. The tyre pressure can be displayed in bar, psi, kPa or kg/cm², so no matter what measurement you are used to this device will help you.