Features: Durable and practical Portable,very convenient to carry out screen display,read it very clearly Can switch between mm and inch Specification: Resolution: Digital indicator:001mm/00005" Digital mini-indicator:0001mm/000005" Measuring Range: Digital indicator:0~127mm/05",0~254mm/1" Digital mini-indicator:0~5mm/02",0~127mm/05",0~254mm/1" :One silver oxide battery(SR44) with work voltage 15v(Not included) Operating temperature:0 Celsius~40 Celsius Storage temperature:-20 Celsius~70 Celsius Relative humidity:Less than equal 80% The response speed:Less than equal 05m/s Size:L x W x H/12 x 55 x 25cm/472 x 216 x 098" Material:Aluminum Alloy Color:As pictures Package include:1 x Digital dial indicator(Battery is not included) 1 x Instruction Manual Note:Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.