Thank you so much!!!!
Really appreciate you taking the time to document this. You have confirmed this will work for me. I was concerned it would require running some other computer, but it does not.
THANK YOU!!!
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Your welcome, however I just saw on the Athom website they're not shipping to USA due to customs policy. 
Here is a similar no switch/relay power monitor but it is still wifi but hard wired. It's made by Shelly which I "think" Hubitat supports (at least the previous generation).
But since I have never used Shelly devices I don't know.
Here's a custom hubitat driver thread for shelly devices.
Thanks. I'm trying to limit hard wired power monitoring at the device.
I'm also researching panel type CT clamp power monitoring. The options for those seems to have expanded recently, so it may end up being more cost effective (and use less vampire power) to install 2 sets of CT clamp power monitoring...Still figuring it out.
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The Shelly EM Gen 3 uses CT clamps, so it’s entirely not inline with the device. It’s supported by the driver library linked a couple posts above.
Shelly has a number of other “EM” devices which use CT clamps. Their “PM” devices sit “inline” of the load, so a failure of the Shelly could result in the device you’re monitoring being disrupted. The EM line of devices all use CT clamps and thus avoid that issue.
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