If the item comes direct from a manufacturer, it may be delivered in non-retail packaging, such as a plain or unprinted box or plastic bag. My current clamp was damaged at some point and I repaired it, and I think that one of the wires in the coil broke.

In the 3phase installation, when we put eaqual load on each phase, current will be compensated and nothing should flow through neutral. The device is still not yet officially supported in ZHA, but there is a custom quirk developed for it. There seems to be a negligible difference in their computed Wh totals for ~24 hours (about 170Wh), good. My instinct says that what you are seeing is coming from the measurement or logging system, not from the CT. To test the accuracy of this single clamp power meter by Tuya, I decided to test it against a high quality flood light rated at 100watts.

If the spikes are coming in as valid, that seems to rule out any possibility of corruption in transmission or in the logging process. If we look at the values from the sensor in comparison to other monitoring solutions on the same cable, you can see it’s pretty close. First published 2011-02-18, updated 2022-12-16 (rev 49168), rebuilt 2024-01-29, temporal coverage 2011, spatial coverage 16WW.

I then noticed the weird jagginess on the power measurements on the channel of the blue CT - removing the other CT changed its physical position on the wire. I tried to describe the simple wire that forms something that looks like the letter U and hangs from the junction box.That’s why we need the utility meter integration, to create a sum of consumed energy from those values. This gadget is meant to be installed when you want to monitor a phase that has a group of devices connected to it or in scenarios when you do not have access to a plug, like circuit breaker boxes, server rooms, heating equipment, central cooling systems, computer fleets and similar. For what it's worth, and for the guidance of others, these plugs fit the drain hole on a Perception Triumph 13. Working in tandem with a 3-channel transmitter can add electricity or solar monitoring to your Intuition installation.