Product image for Spirometer

The Spirometer is designed to make human respiratory measurements at rest and during moderate activity. Use it to perform a variety of experiments related to air flow and lung volume. The removable flow head (22 mm ID/30 mm OD) makes it easy to clean and sterilize.



  • Flow rate: ±10 L/s
  • Dead Space: 93 mL
  • Nominal Output: 128 mV/[L/s]
  • Detachable Flow Head:

    • Dimensions: 80.5 mm (diameter) × 101.5 mm (length)
    • Mass: 80 g
    • Construction: Clear acrylic plastic
  • Handle:

    • Dimensions: 127 mm × 23 mm × 35 mm
    • Mass: 85 g
    • Construction: Black ABS plastic
  • Cable length: 1.5 meters
  • Default Sampling Rate:

    • Computer: 100 samples/s
    • TI Calculator: 50 samples/s

Download the user manual for full specifications

Experiments and Lab Ideas

Lab Ideas and Innovative Uses

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What’s Included

  • Vernier Spirometer (includes sensor handle and flow head)
  • (5) disposable mouthpieces
  • (1) disposable bacterial filter
  • (2) nose clips
  • User manual

Sensor Requirements

The Spirometer requires a compatible interface and software to collect data. Interface and software sold separately. Getting started with probeware »

Compatible Interfaces

The Spirometer is compatible with these interfaces:

Ordering Information

All prices are for U.S. educators.

NameOrder CodePriceQuantity
Optional Accessories
Disposable Bacterial Filter (pkg of 10)SPR-FIL$30
Disposable Mouthpiece (pkg of 30)SPR-MP$10
Noseclip (pkg of 10)SPR-NOSE$10
O2 Gas Sensor to Spirometer AdapterO2-SPR$8
Spirometer Flow HeadSPR-FLOW$60

Educational use only: Vernier products are designed for educational use. They are not appropriate for industrial, medical, or commercial applications. Product usage disclaimer »

Order Code SPR-BTA
U.S. Educator Price $199

Sample Data

Flow rate measurements
Flow rate measurements
Measuring lung volume
Measuring lung volume
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