Thanks for your response. I wired the 2 wire thermocouple PT100( two identical black wires) to #7 an 8. And two wires that hop, as was described by you on a prior post. one for #7 to #10 , and #8 to #9. By doing the hops. I got a good temp reading. The (out) led light goes on like it should but the volt reading is about 11-12 volts. I also flipped the two thermo wires just to see ,and no change.