3101-300 ELECTRONIC OUTSIDE MICROMETER 275-300mm/11-12" • Thimble graduation: 0.01mm(option:0.0001") • Buttons:on/off, data set, mm/inch, ABS/INC, data output • Reading in metric and inch • IP65 protection • Resolution: 0.001mm/0.00005"• SR44 battery, with one spare battery,auto power off • RS232 output, supplied with data output cable, ratchet stop, carbide tips • DIN863 • With battery cover spare spherical anvil and zero adjusting wrench • Supplied with standard rods • Packed in plastic box or wooden box.