Wireless spirometer sensor

The CMA Wireless Spirometer W52 measures airflow rate during respiration in the range from -5.0 to 5.0 L/s.
To reduce the risk of cross-contamination between users, the spirometer is supplied with a disposable bacterial filter and 10 disposable mouthpieces.

The spirometer sensor is equipped with an OLED color display which shows sensor information and the measured values. This makes the sensor suitable to use as a standalone measuring instrument.
The spirometer can be used wirelessly via Bluetooth or wired via USB with the Coach 7 or Coach 7 lite programs/apps on computers (Windows and Mac), Chromebooks and mobile devices (Android and iOS).

Technical specifications:

• Measuring range: -5 .. 5 L/s
• Warrantee: 36 months
• OLED display: 0.96” 128 x 64px
• Operating condictions: 0 .. 60 ?, max. 85 % RH
• Maximal sampling rate: 100 Hz
• Battery life: 8h when full (rechargeable)
• Connection: Bluetooth 5, Low Energy (Mac, Android, iOS) Bluetooth 2.1, Classic (Windows) or USB-C 2.0

All specifications of the sensor are described it its Product manual, see downloads.

Suggested biology experiments:

• Record breathing patterns before, during, and after exercise
• Investigate the effect of smoking on lung capacity
• Investigate whether there is a difference in lung capacity between students who participate in sports and non-athletes
• Measuring important lung capacities, such as:
  • Forced Expiratory Volume (FEV) - the amount of air exhaled after a short period of sustained exercise. When this test is performed at one-second intervals, it is known as FEV1
  • Forced Vital Capacity (FVC) - the total amount of air exhaled during a forced maximal exhalation after a full inhalation
  • Tidal Volume (TI) - the amount of air inhaled and exhaled at rest