![Sensors | Free Full-Text | A Smart Phone Based Handheld Wireless Spirometer with Functions and Precision Comparable to Laboratory Spirometers Sensors | Free Full-Text | A Smart Phone Based Handheld Wireless Spirometer with Functions and Precision Comparable to Laboratory Spirometers](https://www.mdpi.com/sensors/sensors-19-02487/article_deploy/html/images/sensors-19-02487-g006.png)
Sensors | Free Full-Text | A Smart Phone Based Handheld Wireless Spirometer with Functions and Precision Comparable to Laboratory Spirometers
![Hand-held spirometer - Smart One Oxi - MIR - Medical International Research - with SpO2 monitor / Bluetooth / for smartphones Hand-held spirometer - Smart One Oxi - MIR - Medical International Research - with SpO2 monitor / Bluetooth / for smartphones](https://img.medicalexpo.com/images_me/photo-g/69437-16071889.webp)
Hand-held spirometer - Smart One Oxi - MIR - Medical International Research - with SpO2 monitor / Bluetooth / for smartphones
![Sensors | Free Full-Text | A Smart Phone Based Handheld Wireless Spirometer with Functions and Precision Comparable to Laboratory Spirometers Sensors | Free Full-Text | A Smart Phone Based Handheld Wireless Spirometer with Functions and Precision Comparable to Laboratory Spirometers](https://www.mdpi.com/sensors/sensors-19-02487/article_deploy/html/images/sensors-19-02487-g001.png)