The output of the AO2 sensor changes with temperature, but the thermistor is integrated to compensate for these changes. The thermistor provides the AO2 with a stable output over a wide temperature range. The AO2 PTB-18.10 oxygen sensor is used in oxygen index meters and is a consumable item. When exposed to air, a chemical reaction begins. AO2 Product Parameters: (1) Output: 9–13 mV in air (2) Range: 0–100% O₂ (3) Accuracy: 0.01% O₂ (4) Expected service life: 360,000 %O₂-hours at 20°C, 286,000 %O₂-hours at 40°C, or two years in air at STP (5) T90 response time: < 5 seconds (6) T99.5 response time: < 40 seconds (7) 100% oxygen signal: 100% (8) Linearity: 0–100% O₂ (9) Zero offset: < 20 µV (10) Temperature range: –20°C to +50°C (11) Temperature compensation: < 2% variation from 0°C to 40°C (12) Differential pressure range: 0–500 mbar max (13) Absolute pressure range: 500–2000 mbar (14) Relative humidity range: 0–99% non-condensing (15) Long-term output drift: < 10% signal loss per year (16) Recommended load resistance minimum: 10 kΩ Note: Due to different production batches, the product appearance may vary slightly, which does not affect functionality. Color: Red Material: Plastic Package Contents: 1 × Oxygen Sensor Note: Light reflection and display differences may cause slight color variation between the image and the actual item. Measurement tolerance: ±1–3 cm.