Spirometer SPM-300 SPM-300 is spirometer sensor which works with the CardioTouch3000 and Cardio7. SPM-300 uses a disposable sensor, so it is very easy to maintain because the sensor does not need to be disinfected between uses. These disposable sensors make an accurate measurement possible every time. SPM-300 is a spirometer sensor which works with the CardioTouch3000 and Cardio7. By adding the SPM-300 to the CardioTouch3000 or Cardio7, you can test FVC, SVC, MVV and perform a pre-post Bronchodilator comparison. Real-time volume-flow and time-flow monitoring is provided on the color LCD display. 120 tests are stored and a full size printout is provided for easy charting. The disposable mouth piece, SmarTube, is used. This makes it is very easy to maintain the system because the sensor does not need to be disinfected between uses. These disposable sensors make an accurate measurement possible every time.Bionet