How to use PFM820 UTC UTC Conversion Tool?

UTC PFM820 is a device that supports switching between modes AHD/ TVI/ CVI/ CVBS on HD Analog Camera Dahua, Kbvision. Simple operation by pressing and holding the corresponding mode button for 5 seconds continuously.
See detailed instructions in the following video:

If during use, the Tool does not receive the mode on the Camera, it may be due to low battery, please replace the battery and try again like the video below:

Thanks for following this post!!!