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It is recommended to conduct calibration every six months. This product
has a self-adaptability design. Frequent calibration does not help to increase
accuracy.
When carrying out calibration, the ambient temperature should be kept
in the range of 25±5°C. Temperature outside of this range may affect the
accuracy of the calibration.
After the calibration plate is used, please keep it properly. Do not use
organic solvents such as alcohol to wipe the surface. Avoid direct sunlight to
prevent color loss.