Western Digital 4CH TRIPLEX - Manual (Page 7)

WARNING
The authorized expert must install DVR. When connecting a camera, audio, or sensor cables
DVR should be turned off first.
Please be aware that the company is not responsible for the damages caused from using
unauthorized goods and not following the instructions from the manual.
The company is also not responsible for the errors caused after the user has opened up DVR
for an arbitrary fix or the user has removed Warranty seal.
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