The Insize 3506 series IP54 Digital Outside Micrometer with interchangeable anvils has a resolution of 0.001mm/0.00005 and a LR44 battery with automatic power off. Each micrometer is supplied with setting standards and has carbide measuring faces. Resolution 0.001mm/0.00005". IP54 dust/waterproof. Button function: on/off, set, mm/inch, ABS/INC, data output. Data output. LR44 battery, automatic power off. Carbide measuring faces.. Supplied with setting standards. Optional accessary: data output cable (code7302-SPC6) .