AO-09 Oxygen Sensor


Key Benefits:
  • Meets ISO 80601-2-55
  • Linear output from 0% to 100%
  • No external power supply
  • Temperature compensation
  • Excellent signal stability
  • Accurate and reliable
  • Fast response
  • Anti-interference
  • Long lasting


General Information:

AO-09 is the oxygen sensor of Aosong Electronics.Offering long life and fast response, the high quality AO-09 replacement sensor incorporates a molded body design, specific for medical use. Best of all, the AO-09 costs less than the sensors it replaces, creating additional saving while providing superior quality. For further information on the AO-09 or any product in ASAIR’s complete line of medical oxygen analyzers and sensors, contact us.



AO-09 Medical Oxygen Sensors are intended as oxygen-sensing component of an oxygen analyzer that measures oxygen concentration in breathing gas mixtures in the following applications:

• Sensing device for oxygen

• Control device of oxygen concentrators

• Medical ventilators

• Anaesthesia equipment

• Incubators

The use is limited to system monitoring. The sensors are not suited for breath by breath analysis of breath gases. Please refer to the instructions for use. To avoid cross infection, please strictly follow the instructions of the oxygen analyzer manufacturer. 

Technical Parameter:


Output9 mV to 13 mV in 21%O²
Measurement Range0 – 100 Vol.% O²
Temperature Compensation <2%  O² equivalent(0°C-40°C)
Response Time<15 s 
Operating Temperature Range 0°C – +50°C
Operating Pressure Range0.5 Bar – 2.0 Bar 
Operating Humidity Range 0% to 99% RH noncondensing 


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