[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. [Comfortable & Long Battery Life] -The CONTEC oxygen meter's fingertip clip use silica gel mairal,is soft and easy for a wide range of finger sizes,20-30 hours battery life, automatic power off after 5 seconds. [Screen is easy to see and read] -The CONTEC pulse oximeter is intended for sports and aviation use only and is not a medical device. Please note:There's a very thin screen protective film which can be removed before use. [What's Included] -The CONTEC pulse oximeter *1,Handy carry pouch*1,1.5V AAA alkaline batterries*2,Long lanyard(Neck/Wrist Cord)*1,User manual*1.