Gasboard-8500D-RH Ultrasonic Oxygen Concentration Sensor for Medical Device Applications

The Gasboard-8500D-RH is an ultrasonic oxygen concentration sensor is used to measure oxygen concnetration in binary gasses.
The Gasboard-8500D-RH uses a time-of-flight measurement principle that can provide a stable and accurate measurment that is free from drift and does not require calibration.


  • Ultrasonic measurment of oxygen concentration (flow range 0-80 liters per minute)
  • Time of Flight measurement principle ensures continuous measurment free of drift and removes the need for regular calibration
  • Excellent measurement stability, high accuracy and fast response in all medical device application environments
  • Full scale temperature and humidity compensation
  • Optimized Price-Performance Ratio
  • Easily integrated into ventilators, compact size



Measurement range O2 0~100%(withstand flow range: 0~80L)
Resolution 0.1%
Concentration accuracy ±3%FS @ (5-45)℃
Response time <10s
Working temperature 5℃~50℃; 0-95%RH (non-condensing)
Storage temperature -20℃~60℃; 0~95%RH below ( non-condensing)
Power supply DC 4.75-12.6V
Signal output UART-TTL (3.3V)
Dimensions L60.7*W26*H30(mm)


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