DIGITAL THREE POINTS INTERNAL MICROMETER INSIZE 8 years ago Resolution 0.001mm/0.00005″ IP54 dust/waterproof Buttons:on/off, set,mm/inch,ABS/INC Data output LR44 battery,automatic power off Ratchet stop Optional accessary:data output cable(code 7306-30, 7302-SPC2A, 7305-SPC3), setting ring(code 6312) Check The PDF