Review on AC Power Energy Panel Meter LCD Digital Display Ammeter Voltmeter with Split Core CT - 100A Multi-Function Power Monitor by Andrew Holman

I would give this a 5 except they didn't make the wires coming from the CT long enough. I've tried expanding them, except it changes the current reading. Simply doubling the length halves the current reading. There is a fine adjustment button, but it only changes the reading by 1 count. So I would have to press 1000 times to get the reading from 400 watts to 1100 watts.