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High Quality Sewer Drain Pipe Inspection Camera And Water Well Borehole Camera Manufacturer.

How to Use the keyboard function?

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How to Use the keyboard function?

How to use the USB wireless keyboard function.

1. Take out the USB adaptor and inert it into the control box "Keyboard" Port

2. Install 2pcs AAA battery to keyboard

3.Power the control box, then you can typewrite the words on the screen

F8: Display the characters

F9: Hidden the characters

F10: Clear all characters

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