ECOTEST DKG-21 Operating Manual page 73

9.5 Warranty is invalid in case of use, shipping and storage violations,
any mechanical damages, or if the warranty seals are violated. In this case
the repair is performed at the user's expense.
9.6 After the warranty period terminates, the repair of the dosimeter is
performed under separate contracts.
9.7 Warranty and post-warranty repair is done only by the
manufacturer.
9.8 Failure of the storage battery shall not be a reason for claim.
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