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HDC1080: After the HDC1080 sensor is placed in a normal temperature warehouse for 10 months, the product error is higher than 10%.

Part Number: HDC1080

Hello, below is customer question. 

The sensor product was produced in October 2017, and the HDC1080 product was calibrated. After being delivered to the end customer, the customer did not use it in time, and placed it in the normal temperature warehouse for about 10 months.

The reopening test shows that the humidity of the HDC1080 test is high.

Place it in a normal temperature warehouse and place it for ten months before preparing for production again. 10% error in the humidity measured in the laboratory before production.

How to deal with this error?