Hello Félix,
Yes, the product can work for your application but the operating values and the measuring values of your application should be within the values of the product.
Here are the parameters of the product:
Parameters:
Working Voltage: 6.5 ~ 100VDC
Measuring Range: 6.5 ~ 100VDC
Rated Power: 20A/2000W
Measuring Accuracy: 1.0 grade

Test range and display format:
Power Range: 0~2kW
within 1kW, display 0.0~999.9W;
above 1kW, display 1000~2000W.
Energy Range: 0~9999kWh
within 10KWh, display 0~9999Wh;
above 10kWh, display 10~9999kWh.
Voltage Range: 6.5~100V(display 6.50~99.99V)
Current Range: 0~20A(display 0.00~20.00A)

Note:
This module is suitable for indoor, please do not use outdoor.
Applied load should not exceed the rated voltage or current.
Wiring order can’t be wrong.

Hope this can help you.
Best regards

Hello Félix,
If the measuring current is over 20A, you should use the 50A module with external shunt.
The shunt should be connected series to the negative of the load.
The value of the shunt is 50A/75mV.
Here is the wiring diagram of the 50A module:

Hope this can help you.
Best regards

Hello Félix,
You’re welcome.
If you have any queries, please fell free to write back to us.
Best regards