Onyx II 9550 Pulse Oxymeter

The Nonin Onyx II 9550 Military certified finger pulse oximeter is a very small, lightweight, portable instrument that measures blood oxygen (%SpO2) and heart rate. The Nonin Onyx II 9550 is intended for one-off and regular checks of adults and children on fingers with a thickness of 0.8 to 2.5 cm. Use on the index finger is preferable.

• Oxygen content range: 0 - 100%
• Heart rate range: 18 to 321 beats per minute
• Indicators: * Numeric screen: two LED's with 3 digits of 7 segments * Pulse quality screen: three-color LED
• Measuring wavelengths: Red : 660 nanometer; Infrared : 910 nanometer
• Accuracy: Blood oxygen content (%Spo2) (± 1 S.D.)ª: 70% to 100% ± 2 digits; Heart rate ± 3% ± 1 digit
• Ambient temperature: 0°C - 50°C
• Ambient humidity: 10% to 90% non-condensing
• Storage temperature: -30 °C to + 50 °C
• Storage humidity: 10% to 95% non-condensing
• Height: Working height: Up to 9144 meters; Hyperbaric pressure: Up to 4 atmospheres
• Degree of protection against penetrating water: IPX2
• Power requirements: Two 1.5 volt AAA batteries
• Dimensions: 3.3 x 3.3 x 5.6 cm
• Weight: 53 grams including batteries