Dagamma DP250 Premium Finger Pulse Oximeter With User Configurable Audio SpO2 And Heart Rate Alarm, White (DMDE2700402)

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  Accurately measures oxygen saturation of arterial hemoglobin, pulse rate and perfusion index
  
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  Dual-color display that automatically rotates for easy reading
  
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  4 display modes that show Blood-Oxygen Saturation (SpO2), Pulse Rate and Pulse Bar
  
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  Accommodates a wide range of finger sizes: circumference approximately 20-75mm, user weight approximately 33-242 lbs (15-110KG)
  
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  Low-battery indicator and an automatic shut off to preserve battery life
  
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  Batteries included; 2 AAA
  
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  Latex Free
  
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  Includes a carry case
  
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  2 year warranty
  

SpO2 (oxygen saturation level): 0-100% (+/- 2% when 70% – 100% and meaningless on oxygen saturation below 70%). Pulse Rate: 30 bpm – 250 bpm (beats per minute) (+/- 2 bpm on pulse rate of 30 bpm – 99 bpm and +/- 2% on pulse rate of 100 bpm – 250 bpm).