Update: Even with a proper wiring setup, I am still having problems.
I carefully separated the neutral wire from the grounding and hot on an extension cord. Then I attached one clamp around neutral, and the other around grounding and hot.
Then I plugged in a lamp via a Kill-A-Watt device to check the current draw. Here is a photo:
I plugged in and re-paired the device, tapped configure a few times, and haven’t seen any readings except for an initial 0 Watts in two hours.
Is there anything else to try?
Should I be concerned that the Device page in the API says “No Data?”
The device page says I have firmware 3.60. Should I update to 3.64? I have not done so already because I read one post criticizing the update and I’m not sure if you can roll back.
Are the two wire bundles too close together?
On a side note, I heard about these today:
More expensive than a $3 extension cable, but it is for the exact functionality we need, and is UL listed.