Grades 4 and up. This digital spirometer duplicates the performance of professional instruments by quickly and accurately measuring lung volume. The large, easy-to-read digital display gives instant volume readouts. No more lengthy volume calculations that may affect results or take up time. A nice addition to human physiology, anatomy, and health class units. Includes AC adapter and 50 disposable mouth pieces, can also run on two "AA" batteries (not included).

Digital Spirometer

SKU: SB45890S
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