DIGITAL CALIPERS 8mm high LCD display and 12mm high LCD for extra large screen. Zero setting at any position Metric/Inch system interchange Manual power on/off or auto off Power on/off at any position, invariable measuring origin (Zero) Display window uses special quartz glass, strong ability of scratch resistance. Power: 1PC of SR44 silver-oxide cell, can be used constantly for 12 months RS-232 output: Can be connected with the computer and printer through special interface. Resolution: 0.01mm/0.0005" Have "ABS", "HOLD", "TOL", "MODE" function When order, if no special requirement, it is "ABS" type Instrumental error: 0-200mm/8", 0.03mm/0.001"; 200mm/8"-300mm/12", 0.04mm/0.0015", 300mm/12"-500mm/20", 0.05mm/0.002" Max speed: 1m/s Multi different surface color Manual power off Auto off Range Graduations 101-4401 101-4411 0-100mm/4" 0.01mm/0.0005" 101-4601 101-4611 0-150mm/6" 0.01mm/0.0005" 101-4801 101-4811 0-200mm/8" 0.01mm/0.0005" 101-4201 101-4211 0-300mm/12" 0.01mm/0.0005"