DIN mounted 3 phase local energy meter with screen.

[leaden furnace]

I have been looking around for a 3 clamp/phase DIN mounted meter.
A display would be nice. To show monthly/yearly consumption.

Without a display there seem to be many decent options like the Shelly Pro 3EM or a cheaper option a Tuya/zemismart 3 phase zigbee or wifi monitor. (from my understanding wifi tuya is a pain to setup locally and is a security risk)

I am also not sure if you can use a single phase device with 3 clamps (I assume not)
Yet you can use a 3 single phase clamps :X

All the nicely compiled lists I found were very old.
https://smarthomescene.com/top-picks/best-energy-meters-for-home-assistant/
https://static.xtremeownage.com/blog/2022/2023-home-assistant---energy-monitoring/

[random rapids]

Hello. Looking for Zigbee? Without display 3P or 1P can be from Bituotechnic branded differently on Aliexpress. 3P with or without neutral? You can have RS485 opr ethernet device with display, from Orno, Phoenix contact or others. Easy integration.

[leaden furnace]

https://www.aliexpress.com/item/1005007039593496.html?spm=a2g0o.home.pcJustForYou.3.17526278TRfG60&gps-id=pcJustForYou&scm=1007.13562.416251.0&scm_id=1007.13562.416251.0&scm-url=1007.13562.416251.0&pvid=10a28c81-afc9-4fd2-9bf9-c38563fdb98f&_t=gps-id:pcJustForYou,scm-url:1007.13562.416251.0,pvid:10a28c81-afc9-4fd2-9bf9-c38563fdb98f,tpp_buckets:668%232846%238107%231934&pdp_ext_f={"order"%3A"1671"%2C"eval"%3A"1"%2C"orig_sl_item_id"%3A"1005007039593496"%2C"orig_item_id"%3A"1005006034226090"%2C"sceneId"%3A"3562"}&pdp_npi=4%40dis!CZK!2618.79!1257.02!!!873.98!419.51!%40210385bb17520667674827390ebc4f!12000039183100828!rec!CZ!832321941!X&utparam-url=scene%3ApcJustForYou|query_from%3A
I assume this is the Bituotechnic one. (looks similar frm pictures)

RS485 seems like an extra hassle to deal with, but they look very cheap and sold with local warranty.

I have neutrals, so its not an issue. (or I assume its like switches, so without is battery powered?)

Zigbee or wifi, if wifi - preferably simple local integration where I can not get locked out of my property.

https://i.gyazo.com/74dbbfc05318f82a363e8be56418c504.png
why does one only have neutral, and the other all all 3 phases?

[random rapids]

There is always réf point. What do you want to achieve...?

[leaden furnace]

monitor one floors (seperate breaker) energy usage

so it can be paid for by the end of year, or monthly

[random rapids]

Do you have a raspberry pi? Do you know emoncms?

[leaden furnace]

yes, no

[random rapids]

How far is the distance between raspi and meter?

[leaden furnace]

I have a few spare older ones lying around

[vital crow]

The real question should be wether or not you need a display

There are many inexpensive clamp on meters around that either work outright or can be flashed with esphome

There is little need to diy anything beyond that

With display you look at a smart/digital energy meter usually the stuff they would put in to measure the main household

[leaden furnace]

I guess I will go without the display then, it was a preference, not a must

[vital crow]

Shelly is a very decent option but if you need many (like 16 clamps) you can get a emporia vue 3 and flash esphome

They have a din rail mount kit for a couple bucks but you kinda can just go to Amazon and buy the no name brand bracket for it at 1/10 the cost

[leaden furnace]

I'm mainly only after 3 clamps for the 3 phases. More clamps for cheap are a bonus, but not a requirement

Also forgot to mention: EU/CZ

[vital crow]

Then the pro 3em

you could also get one of its flavors tho those tend to be somewhat more unsupported at the time on third party services