Bluetooth Wireless Spirometer Sensor-(ELS-LOG3100)

Data Harvest Bluetooth Wireless Spirometer Sensor - The spirometer measures air flow by pressure drop across a reference flow resistance whilst the user breathes. It is portable, small, compact and needs no special gases or water. The spirometer sensor comes complete with a starter pack of 4 filters, a circular mouth guard and nose clip. One filter is left fixed as a pressure divider, the other three are for use by test subjects. For educational / demonstration use. Not suitable as a diagnostic tool or for medical use. -