\n- SpO2 range: 0% to 100% \n- Pulse rate range: 25 to 250bpm \n- 5 level adjustable brightness \n-  SpO2, Pulse Rate, Waveform, Pulse Bar, Plethysmograph, Low Perfusion \n-  Anti-Motion Technology \n- Easy to use & high accuracy  \n- Small in size and lightweight \n- Alarms for SpO2 < 94% ; PR > 130bpm, PR < 50bpm; Low battery \n-  Auto power-off after 8 seconds without signal \n-  Includes 2 x AAA batteries, lanyard and warranty \n