Michelin's Fit2Go Tyre Pressure Checker is a quick and easy keyring sized solution to checking your tyre pressures. Simply hold the keyring up to the battery-free sensors, and the current tyre pressure is displayed.Quick and easy solution to checking tyre pressureBattery free sensorsUSB rechargable displayMichelin's Fit2Go Pressure Checker is an incredibly quick and easy way to check your tyre pressures before setting off. No more messing about with dirty valve covers. No more fiddling about screwing on air hoses.You simply fit the valve cap covers, which are battery free, the once. You can then hold the keyring sized display over each cover in turn to see the tyre pressure.The keyring display can be recharged via USB. The screen is LCD and backlit. Pressure can be shown in PSI and Bar.This is one of the best solutions to staying on top of your tyre pressures short of a dedicated TPMS system.Designed for use with tyre pressures up to 86 psi / 5.92 bar. Not suitable for HGV tyres.