The output of the AO2 sensor varies with temperature, but the integrated thermistor compensates for these changes, providing a stable output across a wide temperature range. The AO2 PTB-18.10 oxygen sensor is used in oxygen index meters and is a consumable item. A chemical reaction begins when it is exposed to air. 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 standard temperature and pressure (STP) (5) T90 response time: < 5 seconds (6) T99.5 response time: < 40 seconds (7) Signal output in 100% O₂: ~100% of full scale (8) Linearity: 0–100% O₂ (9) Zero offset: < 20 µV (10) Operating temperature range: –20°C to +50°C (11) Temperature compensation: < 2% signal 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 minimum load resistance: 10 kΩ Note: Slight variations in product appearance may occur between production batches; this does not affect performance. Color: Red Material: Plastic Package Contents: 1 × Oxygen Sensor Note: Lighting conditions and display settings may cause slight color differences between images and the actual product. Measurement tolerance: ±1–3 cm.