OWON 1 or 3 Phase Tuya Wi-Fi Bi-Directional Energy Monitor,Smart Home Power Monitor with 3 * 300A Clamp, Track Electricity in Real Time, Solar/Net Metering

These are a very good meter for up to 200kw.The smartlife interface isn't great for showing graphs but that might be tuya software being poor.I use them on home assistant with local-tuya. Some seem to randomly drop off but again hardly the unit's fault.Fairly easy to install but you do need to plan how to get 3 phase protected circuit to it.Having had 12 or more for over 12 months I've only lost one due to unknown errors.WiFi connects pretty well even inside steel boxes and remote antenna solves most issues.Compares well to emporia in terms of accuracy and proper power factor info on each phase.Emporia has far better native app and huge expansion for a whole board but this one good for high power connection meeting and very well priced and compact.A key feature is that one can monitor the energy used by a system and then react to it. E.g. if something is operating (and power goes over a certain level) then one can turn on something else.

I can't say enough great things. Let's me know exactly how much each circuit is using allowing me to me to track how much energy my refrigerator uses. It was also very eye opening to see how much energy my dehumidifier is consuming.