According to the different reading forms, it can be divided into ordinary cursor type and electronic digital display type. According to the number of main columns, there are also single and double columns. The application range is very wide, mainly including the production industries of machinery, molds, hardware, plastics, electronics, etc.

The altimeter is an instrument placed on a platform for uniaxial measurement, and the ideal placement platform is a granite platform. Altimeters, like other precision instruments, have certain requirements for the environment. Their optimal working environment is (20 ± 2) ℃, and the humidity is 55% - 65%. The purpose is to ensure the accuracy of data.