Product Description :
Compact, lightweight and portable built-in flexible three -zone management system easy- to- read numbers measurement range 50-400 l/min accuracy and repeatability assurance suitable for use with disposable mouthpiece design for child washable en iso 23747: 2009 compliance ce approval.
Product Features :
- and repeatability assurance
- built-in flexible three -zone management system
- to- read numbers measurement range 50-400 l/min
- peak flow meter - child