Specs include... 0-12" / 300mm Measuring Range 0.0005" / 0.005mm Resolution +0.0012" Accuracy Base Dimensions: 2.5" x 0.67" Features include... Mode button to capture minimum or maximum reading +/- button to change measuring direction CR2032 battery, automatic power off Stainless steel base Supplied with pointed tip and ball tip Supplied in fitted storage case Extension Rods included... 1pc x 1" 1pc x 2" 1pc x 3" 2pc x 4"