Standard Manufacturers standard Measuring range 25mm Reversible reading 0.001mm Reversible reading 0.00005in Reversible reading mm / inch Error limit 0.005mm Interface RS232 interface; USB interface Gauging force < 2N Clamping shank h6 8mm Measurement technology digital Body 57mm Thickness of housing 33.4mm Loop on the back of the dial indicator no Power supply Battery-powered Number of batteries contained 1