It will work once you figure out how to connect it. WITHOUT MANUAL. There are Chinese characters on the back of the device. There are two connectors on the back. Connect the probe to the right side, the orange wire to +, the other wire to -. But I had to try three of the four permutations to get there. I just looked at his Revain list and you can see the correct wiring there. . Why did not I think of this. Okay, 3 stars anyway, just for making myself look stupid.
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