CONTEC SP70B Handheld Digital Spirometer

Features Parameters including FVC, FEV1, FEV1/FVC and PEF can be measured. Personal information setup, including height, age, gender, etc. Health status indication. B&&T transmission. Data memory and case review function. Low battery indication. Real-time clock display and setup. Automatic power off function. Mass storage device, stores up to 9999 cases. Performance 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) Safety classification: internally powered equipment, type BF applied part Working current: 80 mA Power supply: two AAA batteries Accessories 1)A User Manual （GB only）on request for other Language 2)A mouthpiece (disposable) Physical characteristic Dimension: 138 mm(L)×63 mm(W)×47 mm(H) Weight: 130g (with batteries)