• Output current at 20.9% O₂: 80 to 120 µA
• Response time (t90) from 20.9% to 0% O₂: < 15 seconds
• Zero current in N₂: < 2 µA
• Pressure sensitivity: < 0.1% change in output per % change in pressure at 20kPa
• Linearity deviation at 10% O₂: 0.6%
• Hysteresis after 16 cycles (0 to 20.9% O₂): < 0.15%
• Hand aspirator response: typical change from 19.5 to 22.5% O₂

• Output drift over 3 months: < 1% change
• Operating life: > 24 months until 85% of original output at 20.9% O₂

• Humidity sensitivity: < 0.7% O₂ change from 0% to 95% relative humidity at 40°C
• CO₂ sensitivity: 0.1% change in O₂ reading per % CO₂ at 5% CO₂

• Diameter: 20.0 mm (including label)
• Height: 16.8 mm (including foam ring)
• Weight: < 16 g

• Temperature range: -30 to 55°C
• Pressure range: 80 to 120 kPa
• Humidity range: 5 to 95% rh continuous (0 to 99% rh short term)
• Storage period: 6 months at 3 to 20°C (store in sealed pot, open circuit)
• Recommended load resistor: 47 to 100 Ω

All sensors are tested under ambient environmental conditions with a 47 ohm load resistor unless otherwise stated. Customers are advised to test sensors under their own conditions to ensure suitability for their requirements. Alphasense Ltd provides this information without legal responsibility and reserves the right to change design features and specifications without prior notification.

• Figure 2: Shows variation in sensitivity due to temperature changes.
• Figure 3: Sensitivity at 50°C.
• Figure 4: Long-term stability plot showing superior repeatability and stable output over the sensor's lifetime.