Features: Very accurate,the accuracy of it is as high as 0.001mm. Firstly adjust the measuring distance with the coarse adjustment tube, and then fine-adjust the resolution to 0.001mm through the differential cylinder. The operation is simple and convenient. Turn left to lock, turn to the right to unlock, after idle shutdown, use the locking device to turn the machine to the left. Easy to operate,short press ht eon/off button to switch the machine,hold the button for three seconds to set the absolutely original point. Short press to change to the mode of the comparison measurement of original point, display 0.000mm, when the INC mark is lit, the comparison measurement can be made; short press again to become the absolute measurement value, INC flag is off.Press and hold for more than 3 seconds to convert the unit(mm/in). Made of cemented carbide, the color is bright and not easy to rust. The rugged and durable probe has small error and can be adjusted at will. It has strong applicability. LCD screen, strong anti-scratch ability, clear data display, intuitive reading. Specification: Resolution: 0.001mm Measuring Range:0~25mm Battery:1*2032(Not Included) Package List: 1*Micrometer 1*Small Wrench