DZL-3D interface type Chinese gas power electron column micrometer, is the use of embedded technology design digital meter for various specifications from Φ0.5 to Φ2.0 gas probe, automatic correction of magnification, eliminating the need for manual Repeated tedious calibration process can replace a variety of pneumatic-meter buoy magnification. By adjusting the ratio of the gap caused by the changes compensate for wear and maintain accuracy, increase the service life of the gas probe. LCD display with bright direct detection results can be displayed simultaneously absolute and relative value. Red, green, and orange light beam to visually display the measured size of its tolerance band deviations. Has a measurement data storage and query capabilities, data printout function. Equipped with a RS232 interface to communicate with the host computer. After connecting with the computer software SPC analysis of the measurement results. Specifically the following characteristics: 1, automatic correction factor, eliminating the need for tedious manual calibration process is repeated. 2, bright LCD screen does not limit the viewing angle, the light intensity does not restrict the use of occasions, for a variety of production environments. 3, Chinese menu interface, intuitive, convenient and fast. 4, when measured through the green, orange, red indicates the measured size of the "qualified", "alarm", "ultra-poor" state. 5, indicating the beam measurements, while the LCD display shows the actual measured values ??directly measured the size and dimensions measured relative to the nominal size of the change in the amount of (actual size deviation). 6, suitable for a variety from Ф0.5 to Ф2.0 gas probe, can replace a variety of magnification pneumatic-meter buoy. 7, using a variety of anti-jamming and stabilization technology to improve the measurement stability and reliability. 8, the system sets aside ten program space, all the parameter settings are saved with a power-down feature. 9, with the measurement data storage and query capabilities. 10, "extreme value" measurement functions: measuring device can be combined, using a variety of mathematical models to calculate the concentricity, ovality, beating, cylindrical, flatness, squareness and other forms of error. 11, data communications functions, including: input and output signal functions and data communication capabilities. Ф2.0 with Ф0.5 to probe a variety of supporting the use of gas, can be realized within 1mm-180mm diameter measurement, to ensure repeated accuracy 1μm, instead buoy pneumatic measuring instrument used to meet high-volume production line precision measurement needs.