Make extremely precise measurements with this high quality stainless steel caliper. The EZ Cal digital caliper is fast and accurate - no more eyestrain or guesswork, thanks to its Super large LCD display. It features adjustable jaws that read inside and outside dimensions, and also has an extension rod for depth measurements. The readout shows the entire measurement in inches to 0.0005 inch, millimeters to 0.01mm and Fractions of an inch to 1/128 inch. Auto off/on and auto zero functions are available at the touch of a button. Its humidity and dust resistance. Comes packaged in a sturdy plastic storage case with an extra 3V CR2032 battery.