HY there i can see your post and i must say

To accurately determine the sizes and compatibility, I recommend the following steps:

1. Check Manuals and Specifications:
   • Consult the user manuals and specifications for both cameras. They should provide information about the required DC plug size for the Duo 2 camera and the power requirements for the Argus PT camera.
2. Contact Manufacturer Support:
   • Reach out to Reolink's customer support for the Duo 2 camera and inquire about the specific DC plug size. Additionally, ask them if they have recommendations for converters compatible with the Argus PT camera's USB-C connection.
3. Physical Measurement:
   • If you have access to calipers or a ruler, you can attempt to measure the DC plug's outer diameter. Be cautious with this method, as accurate measurements are crucial to ensure proper compatibility.
4. Professional Assistance:
   • If accurate measurement is difficult, consider seeking assistance from a local electronics store or technician who might have the tools to accurately measure the DC plug size.

Thanks and regards
RochelleWinston