Get precise relative distance measurements between fixed and moving parts within 12" range with this Digital Scale. Ideal for mounting to woodworking and metalworking machines for table height adjustments, cutter heights, depth adjustments and more. Resolution is 0.01mm and maximum measuring speed is 1.5m/s. Features inches and millimeters conversion button, plus and minus preset buttons and zero setting on button. Each Digital Scale includes an extra long life battery. Mounting screws are not included. Will Need a battery installed.