Sofamel CASTELLANO POWER LIGHT Mode D'emploi page 20

MAINTENANCE
Keep the voltage detector clean.
Transport and store the device in the supplied carrying
case.
Prevent all kinds of blows. In the event of fall, break or
detection of any anomaly, contact SOFAMEL, S.L. for its
inspection, repair or calibration.
Even if it is stored, the voltage detector should be checked
and calibrated by the manufacturer after a maximum of 6
years.
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