_x005F_x005F_x005F_x000D__x000Dre you looking compatible with a professional, yet afcompatible withdable vital capacity meter? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further Our professional vital capacity meter must meet you needs. It is one of the best choices compatible with you._x005F_x005F_x005F_x000D__x005F_x005F_x005F_x000D_Features_x005F_x005F_x005F_x000D__x005F_x005F_x005F_x000D_- Color: as shown_x005F_x005F_x005F_x000D_- Material: ABS_x005F_x005F_x005F_x000D_- Size: 15x6x3.8cm_x005F_x005F_x005F_x000D_- Spirometer is a portable, hand-held device that measures your ability to exhale air from your lungs and provides a accurate picture of airway ventilation._x005F_x005F_x005F_x000D_- Perfect compatible with Athletes and Exercise, oxygen users and asthma. Dual flow range accurately measures compatible with both adults & children. Instant readings track changes in air flow compatible with detection of asthmatic issues._x005F_x005F_x005F_x000D_- Made of material compatible with long lasting use._x005F_x005F_x005F_x000D_- Assists detection of pending asthma attack._x005F_x005F_x005F_x000D_- Instant readings help track changes in air flow.Packing list1 x vital capacity Meter