๐๐ค ๐๐๐๐๐๐ฃ๐ ๐๐ค๐ฃ๐ฉ๐๐ก๐ฎ ๐๐๐๐จ. Cover the area you wouldn't detection?. Want to detection only the customized zone?. No need change them one by one. NOTE: When plugged with a larger monitor screen via the HDMI port, the 10.1" NVR screen still works well but in black screen.
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