Fangrui Product Details This Digital Readout Kit Can Be Installed On A Variety Of Woodworking And Metalworking Machines Allowing Conversion To Digital Readout.features:remote Readout Lcd Display Convenient For Reading And Operation.the Design Is Novel And Has Strong Anti-interference Ability.quick Response Speed Of 3 M/s, No Over-speed Error Occurred.the Display Has 2 Magnet On The Back, Which Can Be Attached To Iron And Is More Convenient To Use.it Is Used To Be Equipped Together With Various Industry Lathes And Upgrade Old Lathe.specifications:measuring Range: 0-150mm, 0-300mm (optional)accuracy: 0.06battery: 2 * 3v Cr2032 Button Cells (not Included)on/off: Power Switch Buttonabs: Relative Measurement And Absolute Measurement Conversionmm/in: Millimeter And Inch Standard Conversionzero: Data Reset(zeroing) At Any Positionset: In The Imperial Standard Measurement State, Each Time The Button Is Pressed, The Resolution Of The Fraction Part Is Switched Between 1/32,1/64,1/128.package Weight:0-150mm: 305g / 10.76ounces0-300mm: 330g / 11.64ouncespackage Size: 355 * 68 * 42mm / 13.98 * 2.68 * 1.65inpacking List:1 * Digital Readout Kit1 * Set Of Mounting Accessories