Good man-machine interface: 320 * 240 graphic dot matrix LCD display, high resolution, clear graphics and Chinese characters, one screen multi parameter display;
Automatic pressure generation: the instrument has built-in "electronic pressure pump" and external "electric micro pressure generator" to generate pressure automatically;
Automatic flow measurement: use dry cumulative flowmeter to automatically measure instantaneous flow through photoelectric sensor, automatically count the average flow within the measurement time, and automatically convert the flow under standard conditions;
Automatic data statistics: after the measurement, the error of each point is calculated automatically, and the maximum error is counted automatically, and whether the test result is qualified is judged according to the allowable error, which avoids the trouble of manually recording data and calculating error, and the data recording is more intuitive;
Multi purpose: built in atmospheric pressure and temperature sensor, calibrated and compensated when leaving the factory, can be directly used by users;
Automatic data storage: automatically save various calibration data, each group of data includes standard value, calibrated value, error, maximum error, record number, calibration point (quantity), allowable error, verification result, current temperature, atmospheric pressure, date and time. Seven calibration points can be set for each group of data. Humanized data query and printing mode;
Software calibration, password protection function: the pressure and flow rate of the instrument can be calibrated through the keyboard, and the calibration parameters are password protected;
Real time clock: the instrument can display date and time, which is convenient for users to operate;
High accuracy, light weight, easy to carry: novel design, compact structure, easy to carry, high measurement accuracy;
AC and DC dual use: AC and DC dual-use, DC battery can work continuously for more than 4 hours, standby time more than 8 hours.

The instrument is suitable for pressure and flow calibration of various flow rate tester and smoke sampler. It is mainly used in environmental monitoring, health and epidemic prevention, industrial and mining enterprises, scientific research institutes and other departments.