SONMOL SMPF-2S Electronic Peak Flow Meer Інструкцыя па эксплуатацыі
SONMOL SMPF-2S Electronic Peak Flow Meer Instruction Manual Product Introduction [Product Name] Peak Flow Meter [Specification】 SMPF-2S 【Intended use] Measuring forced expiratory volume of 1 second (FEV1), peak expiratory flow (PEF) [The scope of application】 Apply to the test of…