CONTEC LED CMS50M Pulse Oximeter,SpO2 and PR Value Waveform Blood Oxygen, Neck/Wrist Cord

[Accurate & Fast Results]- Measures accurately and quickly spo2(blood oxygen saturation of arterial hemoglobin levels), pulse rate, bar graph and pulse strength results,display it conveniently on digital LED display.
[Portable & One Click Use] -The light-weight oxygen monitor is about 50g(with the batteries), you only need to put your finger in the fingertip pulse oximeter testing chamber, the result will be shown.
[Comfortable & Long Battery Life] -The contec oxygen meter’s fingertip clip is soft and easy for a wide range of finger sizes, 20-30 hours battery life, automatic power off after 5 seconds.It comes with a little case that makes it easy to carry around in your pocket.