Mitutoyo 1-2" Coolant Proof Micrometer w/o SPC Output Specifications include... 1-2" / 25-50mm Measuring Range 0.00005" / 0.001mm Resolution + .00005" Accuracy IP65 Level Protection Features include... With Ratchet Stop NO SPC Output Enabling use in environments exposed to cutting oil, etc*. Anti-corrosion treatment is required after use. Auto power ON / OFF function. Supplied in fitted case. Functions include... Origin Set, Zero Set, Auto Off Alarm: Low Voltage, Counting value composition error