Zamel, a polish company, makes something similar called Supla MEW-01 [0] to measure energy consumption. It's got WiFi connectivity, a tiny webserver and a REST

Zamel, a polish company, makes something similar called Supla MEW-01 [0] to measure energy consumption. It's got WiFi connectivity, a tiny webserver and a REST API. It seems it's all open source [1]. Their app can use either their server or a self-hosted server. If I understand correctly, you can also consume the meter's data by contacting it directly via the API. I've ordered one on a rave recommendation from a friend, haven't yet had time to familiarize myself with it or test it. Planning to use it to accurately measure heat pump's energy consumption. [0] https://supla.zamel.com/en/product-montage-category/energy-meters/ https://supla.zamel.com/en/product-montage-category/energy-m... [1] https://github.com/SUPLA https://github.com/SUPLA edit: mistakes, GitHub link