Flowmeter Vitalograph Asma-1™

17 to 37° C Operating temperature range

FEV1 Better than +/-3% or +/-100 mL, PEF better than +/-5% or +/-25 L/min accuracy

Indicates blow quality, number of blows and diurnal variation

Device ID automatically transmitted with the data

Ability to add comments to the report

Optionally separate graphs of am and pm sessions

Information presented in tabular and graphical form