18. How to check the DVR serial number from CMS？,
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18. How to check the DVR serial number from CMS？

How to check the  DVR serial number from CMS？
1、Right-click on the image screen, select Device Configuration


2、Select System Info, and then click on the version information,


3、Behind the serial number is a string of numbers and letters mixed device ID number in the phone APP added interface to enter this ID number can be added