CONTEC CMS50NA Pulse Oximeter SpO2 and PR Value

[Accurate & Fast Results]- Measures accurately and quickly spo2(blood oxygen saturation of arterial hemoglobin levels), pulse rate,pulse rate waveform and bar graph TFT display.With rotatable multi directional display.Screen brightness adjustable.
[Portable & Easy To 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