Oxygen Sensor Replacement | 9510


The Nuvair 9510 replacement oxygen sensor is for use with the following gas analyzers: Nuvair O2 Quickstick, OMS 2, UBS O2 Stick, and Nuvair Pro Trimix. For use in Pro Trimix analyzers sold before 04/2013.


The 9510 is a replacement electrochemical oxygen sensor for gas analyzers. Under normal use, oxygen sensors have an expected service life of 36 months. The 9510 replacement sensor fits the following analyzers:

  • Nuvair O2 Quickstick™
  • OMS O2
  • UBS O2 Stick
  • Nuvair Pro Trimix sold before 04/2013

WARNING: Never expose gas sensors to pressure or you may cause damage and/or false readings. Damaged sensors will not provide accurate gas analysis. Most gas analyzers can be used to analyze a regulated gas sample flow, the contents of a gas cylinder, or the flow from a regulator. The flow rate of gas must equal 1-5 L/min. To produce this flow, a Flow Restrictor and Regulator may be required. A faulty Flow Restrictor can lead to a false analyzer reading. Flow Restrictors should be regularly tested with a Flow Meter. Inaccurate gas analysis can lead to serious personal injury or death.


Output 25±2 mV in air at 25°C/77°F, sea level
Electrical Connector Mating plug: Molex (PN 22-28-0021 or 22-28-3021 or 22-23-5024)
Range 0-100% Oxygen
Accuracy +/-1% of full scale at constant temperature and pressure (0-1 atm) when calibrated with 100% oxygen
Sensor Type Electrochemical
Expected Sensor Life 36 months in air at 25°C/77°F and 50% rh
External Thread Size M 16X1
Response Time <6 seconds for 90% of final value
Operating Temperature 32-104°F (0-40°C)
Storage Temperature 32-122°F (0-50°C)
Humidity 0-99% rh (non-condensing)
Weight 1 oz (28.3 g)
Application For diving cylinder oxygen verification and other forms of oxygen testing on the surface/above water. Not intended for underwater use.
Warranty 0 – 12 Months Free Replacement
13 – 18 Months 50% Off Replacement
19 – 24 Months 25% Off Replacement