Dynarex Resp-O2™ Fingertip Pulse Oximeters are premium-quality, non-invasive devices designed to effectively measure pulse rate (PR) and blood oxygenation levels (SpO2). The Pulse Oximeters are designed to fit fingertips comfortably and securely and feature easy-to-read displays for optimal visibility. These compact Oximeters are lightweight and feature a convenient lanyard for easy portability.