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9. Maintenance and cleaning
9.1 Maintenance
Regularly check the product's physical state, e.g. check for damage of the housing.
If you suspect that safe operation cannot be guaranteed anymore, disconnect the product and
ensure that it cannot be used by mistake. Remove the batteries.
You can assume that safe operation is not possible anymore when
•
the device shows visible damage,
•
the device does not function anymore
Please note:
The product is absolutely maintenance-free for you. There are no components on the
inside of the product to be checked or services by you, never open it.