| Specification | |
| Principle* | Pneumotachography |
| Display | 2.0“ screen 176 × 220 pixels |
| Power supply | 3.7V,750mA Lithium Battery |
| Keypad | 3-key keypad |
| Device weight | 135g (Disposable item included) |
| Flow range | 0-14L/s |
| Volume accuracy | ±3% or 50m L |
| Flow accuracy | ±5% or 200 mL |
| Sensor | Automatic BTPS convension |
| Main Parameters | FVC,FEV1/FVC,PEF,FEV1,FEF25,FEF50,FEF75 ,MMEF FET,VBEex,FEV1+FVC |
| Internal Printer | No |
| Cross Containmination Prevention | Excellent |
| Filter | Not Necessary |
| PC software | Yes |
| IOS application | In Progress |
| Traffic light indicator | Yes |
| Rechargeable battery | Yes |
| Automated quality control | Yes |
| Minume flow detection | 0.025L/s |
| Transmission | Bluetooth |
| Power Save mode | Yes |
| Real Time Curve | FV & FT(FV & FT & VT with PC software) |
