... displayPortable to carry using the detachable strap4 in 1, digital compass, thermometer, clock and stop watch.Compass:Adjustment with 16 cardinals point ... °C to 50°C or 14°F to 112°F.Clock: Hour, minute and second.Stop watch: Max.99 minutes.Backlight ... : Powered via One "SR2032" battery.Package contents1 x unit of Digital Compass with thermometer, time and stopwatch1 x units of CR2032 ...