Forced Vital Capacity (FVC), forced expiratory volume in one second (FEV1) to forced vital capacity (FVC) ratio (FEV1/FVC), peak expiratory flow (PEF), forced expiratory flow at 25 % of FVC (FEF25), forced expiratory flow at 50 % of FVC (FEF50), forced expiratory flow at 75 % of FVC (FEF75) and forced expiratory flow from 25 %~ 75 % of FVC (FEF2575) can be measured;
The personnel information (including height, age, sex, etc.) can be set.
Flow-volume chart, volume-time chart display.
The data can be stored, deleted, uploaded and reviewed.
Trend chart display.
Health state indication.
Over - limit prompt function for volume and flow.
Indicate expiration within 6 seconds by indicators.
Start measuring by one-button.
The data can be transmitted by Bluetooth or USB cable.
Real-time clock can be set and displayed.
Battery power indication.
Automatic shutdown when there is no operation within two minutes.
Display mode: 2.8'' LCD
Volume range: 0 ~ 10 L
Volume accuracy: ± 3 % or ± 0.05 L (whichever is greater)
Flow range: 0 L/s ~16 L/s
Flow accuracy: ± 5 % or ± 0.2 L/s (whichever is greater)
Working current: 200 mA
Power supply: rechargeable lithium battery
Safety class: internally powered equipment, type BF applied part
One User Manual
One USB cable
One mouthpiece (disposable accessory)
One nose clip (optional)
One power adapter (optional)
One PC software
Dimension: 160 mm (L) × 65 mm (W )× 45 mm (H)
Weight: 190 g
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