Features :
* Desktop Spirometer
Real-time display respiration waveform: Flow-Volume loop and Volume-Time curve chart
7- color LCD touchscreen, buttons can be operated along with touchscreen
Incentive animation operation guide, easy for the use between children and the old
Built-in thermal printer, reports can be printed directly
BTPS automatic correction function, compensate for the impact of environmental differences
Test time and environment temperature display
Calibration function, ensure measurement accuracy
Multiple predicted value can be selected, suitable for different population
Storage of more than 10,000 groups of data
Lung age estimation function
Built-in lithium battery supports both of AC and DC.