Specifications for the Nonin 9550 Pulse Oximeter:

• Features:

  Small & Lightweight
  Take the Onyx II 9550 anywhere: on a lanyard, in a carrying case or in your pocket/purse. It weighs less than 2 oz.
  Large Bright LED Display
  SpO2 and Pulse Rate can be read from any angle, day or night.
  Pulse Quality Indicator
  Brilliant, easy-to-see LED provides a quick and accurate assessment of patient readings.
  Pediatric to Adult Finger Sizes
  Accommodates a wide range of finger thicknesses,
  Automatic On/Off
  Energy Efficient
  A new turn-off mechanism allows two AAA batteries to provide approximately 2500 spot-checks or 21 hours of continuous operation.
  Durable & Reliable
  Rugged enough to be used in the most demanding situations. The Onyx II 9550 has the US Army and US Air Force aeromedical certification for use in helicopters.
  Automatically turns on for fast, easy spot-checks
  Superior Accuracy
  Trusted by clinicians worldwide
  Allows for 2500 spot-checks or 21 hours of continuous use
  Accommodates finger sizes from pediatric to adult
  Enhanced Design
  Wider LED viewing angle
  Easy battery access
  Vital Signs Within Reach

• Dimensions:

  1.31 in.(3.32 cm) x 2.22 in. (5.63 cm) x 1.27 in. ( 3.22 cm)

• Weight:

  2 oz.

• Warranty:

  2 Year Warranty

• Battery Duration:

  Approximately 21 hours of continuous operation
  

• User Interface:

  Two 3-digit LEDs, 7 segment LED, (light emitting diodes)

• Operating ranges, Intended for Use:

  Temperature: 32 F to 122 F (0 C to 40 C)
  Humidity: 10% to 90% noncondensing
  Altitude: Up to 40,000 feet

  
  

• Oxygen Saturation Range:

  0% to 100%
  
  

  
  

• Power:

  Two 1.5 volt AAA-size batteries

• Storage Ranges, Intended for Storage:

  Temperature: -22 F to 122 F (-30 C to 50 C)
  Humidity: 10% to 95% noncondensing