24 LCD Readout Scale Maximum Measuring Range: 24 /600mm Resolution: 0.0005 /0.01mm Tolerance Range: 0.002 /0.05mm Accuracy: +/-0.001 (+/-0.03mm) Repeatability: 0.0005 /0.01mm Easy to read LCD Display: 0.001 /0.01mm /64ths/inche mounting hardware Can be used in Vertical Horizontal or any position with the mounting hardware 5 function button: On/Off inch/mm/Fraction Zero reset Incremental/Absolute Preset Fractional reading in 64th increment Zero point can be set anywhere along the full travel for comparing measurement No rack pinion or glass scale. Linear scale is safely embedded in the light weight aluminum scale body Features auto turn-off if sit idle to save battery power; when turn on the caliper at the same measurement coordinate (without changing the travel of the caliper) it will remember the numeric value of this coordinates before it auto turn-off USB connection port between the scale and the digital readout One end of wire is welded to electronic ruler the other end is connected with a USB cable connector and monitor Digital signal input terminal is a USB interface more reliable than the original SPC interface Batteries NOT included Batteries required: (2) 3VCR2032 Shipping Weight: 12 OUNCE