QRS 3L Calibration Syringe Crepe Bandages • Built-in automatic performance testing

• Built-in automatic performance testing and meter self-testing for reliable results

small knees

• Strobe light to attract attention to the cabinet when the door is opened

white elastic bandage for dressing retention on high-body-movement areas such as joints

QRS 3L Calibration Syringe Crepe Bandages • Built-in automatic performance testingQRS 3L Calibration Syringe is suited for use with the QRS Orbit Spirometer. Although QRS spirometers cannot be calibrated in the field, the syringe allows you to check your calibration. According to ATS Guidelines, the volume accuracy of the spirometer must be checked at least daily.