The AO2 PTB-18.10 is a partial pressure electrochemical oxygen sensor manufactured by City Technology (UK), commonly used in gas detection applications such as vehicle exhaust analysis, environmental monitoring, and oxygen index testing.

Measurement & Output

• Operating Principle: Partial pressure electrochemical
• Measurement Range: 0–100 oxygen
• Output Signal: 9–13 mV in ambient air
• Response Time (T90): < 5 seconds
• Zero Baseline Voltage: < 20 
• Linearity: 0–100% linear
• Long-Term Drift: < 10% per year

Environmental Conditions

• Operating Temperature: -20 C to +50 C
• Operating Pressure Range: 0.5–2.0 bar
• Differential Pressure Range: 0–500 mbar
• Humidity Range: 0–99% RH (non-condensing)