Aeon Labs Energy Meter clamps

Yep, I understand the need to only put the CT around one leg of the circuit (I am an electrical engineer :wink:.) So that’s not the issue. It appears to be an issue with how the iOS version of the ST App is trying to render the two valueTiles for the Washer and Dryer State. Otherwise, the latest DTH you pointed me to appears to be working well. I’ll try tweaking the DTH to make it suit my needs.



Can I add this as a new device if it isn’t monitoring?

Sitting in family room - plugged in the meter via the provided DC plug, pressed activity button on the meter while in add device mode in the SmartThings app (using this device handler - from John C.

Tried repeatedly and SmartThings just doesn’t see the meter. Appreciate any suggestions…I don’t have to be actively metering power to get SmartThings to see and add the meter do I?

Yeah you can do it without monitoring anything. Try to exclude it first then add.

Thanks, of course right after I posted that I figured it out.

The meter needed a reset…long press on Activity button for about twenty seconds and then it paired immediately. Victory is mine! :slight_smile:

Thanks @Mike_Maxwell for the help!

I was able to get this up and running for the laundry room with your advice and your DTH. I have the washer monitored on clamp #1 and the dryer on clamp #2. I installed the washer clamp in the junction box behind the outlet and stripped the insulation on the dryer cord around 2-inches lower than it already was to be able to fit the second clamp.

I tweaked the DTH a bit to be recognized as multi-button, and pushed on start and held on finish. I customized the base Button Controller Smartapp to send custom messages on pushed and held, which now allows notifications on start and finish of the washer and dryer runs.

This was probably my favorite HA install. I did the main breaker panel as well, so I have whole-house monitoring using the v2 DTH and laundry room using @Mike_Maxwell’s custom laundry v1 DTH.

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Can you please post your tweaked DTH?
Your tweaked DTH might be what I need since I have been unsuccessful getting up and running pulling attributes washerState and dryerState with CoRE.

FYI - I created this modified DTH from @Mike_Maxwell’s HEM DTH with customizations that @MEarly shared on the thread below. Follow that link - I posted the code there.

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Let me know if Dana’s works for you. If not, I can post mine when I get home tomorrow. They should have almost the same functionality and work fine with core, though I believe @Danabw added some nifty little tweaks.

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A little nifty, but very little. :slight_smile: Mostly Mike and MEarly. :smiley:

I recently purchased the aeon HEM, and want to be prepared. My main question right now is how do I make sure the main power is off. I have large switch at the top of my breaker, but I don’t believe that’s really cutting the main power, just the power to all the circuits in my home. I have the power meter outside, can it be turned off from there or do I need to contact the power company.

Pulling the meter is about the only way but please don’t do that.

You just have to be very careful. Those large clamps are permanently live. Touch those and it’s adios.

Nice and clean in there with plenty of room.

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Thanks, I have not opened the power meter box, but I’m assuming there is a switch in there and it would be lower risk to turn off?

Nope , no switch inside, plus it’s sealed. You can have the power co. remove the meter - that’s the only way.

Or hire an electrician if you don’t feel competent,

An aside - some fire departments will pull meters in an emergency or fire, but more won’t even do that.

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Thanks, it seems possible to put the CT clamps on without coming into physical skin contact with the live wires and use only one hand, from reading and watching videos. It looks like I have enough space to accomplish this. Any thoughts?

I was actually going to give the “one hand” advice, but even if you start with one hand, those clamps are really awkward to close using only one hand. I found myself unconsciously reaching with my idle hand to assist. I think the “hold your belt behind your back” only works with conditioned professionals, as it simply becomes muscle memory for them.

However, it is definitely possible to install them without coming into contact with the live cables. Again, as mentioned, if you are uncomfortable, hire an electrician. Funny thing is, many electricians will probably want to tag you with a travel charge or a $79-99 flat charge, since the job was like 15 minutes of work for me as a novice. I’m sure it’s a 30 second install for a professional, maybe 3 minutes if you want them to route the clamp wires.

Just from glancing at your pics, your install should be fairly straightforward. My mains come in from the bottom, so I had to get creative in how I mounted them to get them to stay in place. But, you will have a tougher time routing the wires out of the panel. That was the good thing about the mains being on the bottom, the route to the knock-outs was straight down.

Pro Tip: Get a stick, plastic tool or other non-conductive manipulator to assist with positioning and manipulation if that idle hand refuses to stay out of the way. And still don’t touch the mains. :slight_smile:

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Funny thing is, I was born with one hand so I got that going for me. Do the clamps slide at all? Or need to be tightened somehow? What suggestions do you have on mounting the monitor and how to feed out the cables?

I opened a Knockout at the top of the panel and installed a chase nipple. It is a sleeve that prevents the wires from being torn. I cut out an outlet above that to exit the cables.


The clamps do not tighten. The inner diameter of the clamps is pretty wide, and fixed. They will slide and move around on your mains. With your setup, they should rest right above the terminals and main breaker. You shouldn’t have any issues.

@joelw135’s pic should give you something to aspire for. :stuck_out_tongue:

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Here is what it looks like now after I cleaned it up.


that looks pretty! where do you live and what do you charge to do this? :wink: