Hello Stephen Dorman,
Here is instruction for #2001710003, https://images-na.ssl-images-amazon.com/images/I/B1Z5kTp++9S.pdf
If you want to turn off meter manually，just short press the bottom button.
Best regards,
DROK

Hello Henry,

If possible, please try to replace below components.

U1: XL7005A,

T4: BU406,

T3: C2383,

D6: IN4754

For any more questions, please let us know.

Best regards,

DROK

Hello Steve，

Though we can’t confirm which items you bought, for now, there are no voltage converters that can be controled by PWM.

Best regards,

DROK

Hello Casey，

Do you mean input voltage?  Input voltage range is DC 5V-24V.

Best regards,

DROK

Hello Harvel Scales,

As long as it is shielded cable, you can extend it to 2.5 m(8 feets).

We are sorry we don’t sell  XH2.54-3P connector. If it is not damaged, you can still use it. Or please  try to order it somewhere.

Any more questions, please let us know.

Best regards,

DROK

Hello Chad hightower,

Please check if it is 200219,https://www.amazon.com/dp/B07YWVCBRN/ref=as_li_tl?tag=proeng-20

We have pdf manual on Amazon product details page, please feel free to download it, https://images-na.ssl-images-amazon.com/images/I/D1xd3n-y-DS.pdf

Best regards.

Hello William Bird,

Would you like to tell us which item it is?

Best regards,

DROK

Hello Tony Edwards，

For 180080, fan can draw power from input port.

Best regards,