Spirotrac® V Software combines the power of your PC, network and spirometer. Spirotrac V is compatible with a range of Vitalograph spirometers, each designed to meet your particular spirometry needs. If you prefer a PC-based spirometer the Pneumotrac is the one to choose. For a hand held spirometer the In2itive is ideal. The Alpha Touch is best if you need a touch screen desktop spirometer. All Vitalograph spirometers feature a Fleisch Pneumotachograph for ultimate performance in accurate, linear and reliable flow and volume measurement.