Parameters including FVC, FEV1, FEV1/FVC and PEF can be measured. And the testee condition can be shown by the ratio of the measured value and the predicted value.
User information setup.
Case review function.
Mass storage of cases, stores up to 9999 cases.
Expiratory time indication function.
Calibration function ensures test accuracy.
Power indicator and test indicator light.
Volume range: 0 ~ 10 L
Flow rate range: 0 L/s ~ 16 L/s
Volume accuracy: ±3 % or ±0.05 L (whichever is greater)
Flow rate accuracy: ±5 % or ±0.2 L/s (whichever is greater)
Working current: 60 mA
Power supply: rechargeable lithium battery
Type of protection against electric shock: internally powered equipment
Degree of protection against electric shock: type BF applied part
Degree of protection against ingress of liquid: IP22