SDI Diagnostics Flow Sense II Spirometer Sensor for Puritan-Bennett Renaissance II Spirometers, 29-8040-50

The low-cost alternative to Puritan-Bennett flow sensors! It just makes sense. SDI's easy-to-use flow sensors are ideal for both adult and pediatric patients. Why pay more when we provide the same quality and performance as other manufacturers specifications at a fraction of the cost. Meets or exceeds all American Thoracic Society specifications Won't affect manufacturer's warranty, This is a box of 50.