Digital Peak Flow Meter Spirometer Asthma Copd For Adult Kids Portable Pef Forced Expiratory Volume Fev1 Lung Tester Home Medical

High Accuracy: Adopt differential pressure transducer, excellent structure design, high precision and good repeatability. Measures two parameters and APP tracks: PEF and FEV1. You can input your data which shows on display to manage your asthma attack. Automatically Displays Test Values: Electronic digtal peak flow meter with LCD screen, the Value can be dispaly clearly and quickly.. Mini Size and Lightweight: Portable peak flow meter, can be put in your pocket or bag, all it takes is a one second blow to check your lung function when and where you want.. Suitable for: Adults or Kids with respiratory symptoms, asthma, chronic obstructive pulmonary disease, smokers.