spirometer digital SPM-D

Features: 1)Measure and display over 100 parameters related to FVC, SVC, MVV and MV functions. 2)Display trend chart and respiratory waveform tested, recommend the optimal test curve intelligently. 3)With management functions of user information and case data. 4)Built-in multiple predicted values, which can be set manually. 5)BTPS self-correction function, measure environment parameters automatically. 6) Pulmonary function assessment function. 7)Support bronchial test. 8) With calibration function and quality control, ensure the test accuracy. 9) With quality control function, recommend the test curve with high acceptability intelligently. 10)With report generation, editing and printing functions. 11)One-button test function. 12) Collect the data by a differential pressure sensor, more accurate in results and more sensitive in response. 13) Compact and portable in design, light in weight. 14)Convenient to disassemble, easy to clean, disinfect and replace components. 15) With multiple functions, and it can measure many parameters. 16)One-button test function. 17)With information indicator, which is used to indicate