Dahua DH-SD6C225U-HNI, Руководство по установке

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Please use the soft cloth to clean dust on the shell, or you can use soft cloth with cleaning
liquid to clean the shell and then use soft cloth to make it dry.

Do not use gasoline, dope thinner or other chemical material to clean the shell. It may result
in shell transfiguration or paint flake.

Do not allow the plastic or rubber material to touch the shell for a long time. It may result in
paint flake.