Do you have a brand you recommend? Whats the voltage? I thought that they had to be 12V DC. This is my first power sensing project so not as familiar so any links pics etc would be great so I can identify.

As a side note. On this board is there anyway to subscribe to a tpoic and be notified via email when someone sends a reply? I have been looking all over and don't see where this can be done like other boards. Thanks again.