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Sensor maintenance schedule.
| Component | Activity | Typical Interval |
|---|---|---|
| AQT420 | Visual inspection & cleaning | 12–18 months |
| Replace Cells & Filter | 18–36 months* | |
| WXT536 | Visual inspection, cleaning & performance check | 12–24 months |
*Depending on the local pollution load and its impact on the Electrochemical Cells consumption/depletion rate.
