Budget set and forget z2mqtt clamp meters?

Hardware
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1

I'm in the market for some basic set and forget z2mqtt compatible clamp meters. something with basic functionality that I can set up on the main supply for each of my greenhouse with the minimum of fuss and preferably no real configuration in home assistant.

I just want to get a rough idea how much power each one is drawing and when they are drawing it.

The numbers from my solar panels aren't adding up and I think that something isn't wired up correctly and is drawing on my main supply when it shouldn't be, I but I don't have much granularity on them with the meters provided.

I'm going to need a whole bunch of them and probably won't be needing them much once this is fixed, so I'm looking for some cheap aliexpress style units.

Does anyone have any personal recommendations or experience, I don't trust the online reviews, and most don't over home assistant integration anyway.

all I really need out of them is a single line graph showing draw over time.

2

MOES is usually a pretty reliable brand if you want something on the cheaper side:

Otherwise most relays with a clamp with the correct amp rating will do the job once installed to monitor power draw.

3

I would recommend not using zigbee for this specific application - especially when you are going to do a bunch of those.

The reason being, zigbee is relatively low bandwidth in exchange for power efficiency. And energy monitoring is a high data rate application, so the chance of message saturation could become a concern.

I would instead recommend using WiFi for this - there are devices that could handle 2 or 4 or 8 or 16 CT clamps.

4

I don't have any ap with the range for that, I'm looking to use my existing zigbee repeaters.

If saturation is a problem I could probably just turn down the sample rates.