Bought 6 plus devices of yours via Amazon. I’m not a EE so not understanding how to hook up the wires in the bolt/amp meter. Bought a shunt also so need specifics on hooking thus up.

clearly red goes to positive. Looks like both red together. Then I put both black to the begitive and I get a voltage reading. So where does the yellow go and what otherwise goes to to the shunt.

im trying to measure incoming voltage and current coming in from my PV panel.

can you please email me better instructions than shown in Amazon

id like to build more if these PV monitor boards do g your meters

tgsnks