Hello Kisa McMillan，

Please check if it is below item, #200330

https://www.droking.com/Digital-Meter-AC-80V-260V-20A-4500W-LCD-Display-Tester-Multifunction-Panel-Meter-AC-110V-220V-Digital-Multimeter-Monitor?search=200330&description=true

Measuring range is AC 80-260V

We just check with manfuacturer that 50v-300v is just test voltage for meter. You can ignore it.

Best regards,

DROK

Hello mike,

Could you please check if it  is this item? https://www.amazon.com/dp/B07759SLYP/ref=as_li_tl?tag=proeng-20

Did you program battery type?  If paper manual is missing, please kindly download pdf from product details page. “Product information” > “Technical Specification”>”User Manual [PDF ]”

Or just click on the link directly,  https://images-na.ssl-images-amazon.com/images/I/B1Z5kTp++9S.pdf

For any more questions, please kindly let us know.

Best regards,

DROK

Hello Will，

Would you like to offer product link or SKU number so that we can confirm which item it is?

And do you want to eliminate voltage drop?

No matter which converter it is, due to increased resistance in a circuit, there will be voltage drop, typically caused by an increase load, lead wire, or other components.

You can try to lower voltage drop, but it is hard to eliminate that completely.

Best regards.

Hello michael ward，

Do you mean you modife wireless module?

Please kindly notice the voltage range for this meter can’t be over 80v.

Best regards.

Hello Graeme，

180057 is non-isolated module.  For circuits that are sensitive to noise,  anti-interference feaature may no be as well as isolated module’s. When signal fluctuations from input source is great， output will be also affected.

Regarding current reading, did you try connect larger load? We wonder if there is measurement error for small current.

Wait for your reply sincerely.

Best regards,

DROK

Hello Aquiles,

Will you order at least 1000 pcs each time?  For custom order, manufacturer has quantity requirement. If quantity is not enough,  it is hard to put on production.

Best regards,

DROK

Hello Michael Garber,

Do you mean current flow back from battery to converter?

In that case, it is easy to damage converter, please disconnect battery on the output. Or please connect a diode to stop backward current.

Best regards,

DROK

Hello Lazaro Bravo，

May I know how long the wire length you want to increase?

Best regards,

DROK