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The Mitutoyo 293 series Coolant Proof LCD micrometer has a digital single-value LCD readout that displays in inch and metric units with resolution 0.00005” (0.001mm), and a ratchet thimble mechanism that helps provide precise, repeatable measurement. The micrometer’s electronic microprocessor can hold measurements at any position, convert to absolute value, set a temporary zero position, and return to a true zero reading. On some models, an output jack transmits Statistical Process Control (SPC) data results to a computer or external device through an interface cable (sold separately). The electronics housing has an Ingress Protection 65 (IP65) rating, which means that components are resistant to penetration by dust and debris, and resistant to penetration by liquids and coolant up to the... Less