THANK YOU
Got the AC300-100A closed current transformer. Works as described, easy to install. Display front is a bendy plastic film that can be scratched or perforated easily, so you'll have to be a bit careful with it, not glass like the renders might suggest. Accuracy is reasonable, updates are fast, at least once per second. Button switches between power factor and kWh counter and you can reset the counter. Mounting clips could be better. Optional thermometer probe cannot be installed with the unit mounted in a front panel, as the connector is too close to the front edge. The unit didn't need a thermometer in the first place. Works fine without, showing -- instead of a temperature. Generally good readable display, except for some issues at certain view angles (top and right, see photo) and the backlight leaks out of display edge. Right brightness, not too dim nor illuminating the room in total darkness. 4.5/5 stars. Good value for the price.