Ketotek rail power meter KTEM06 -- binding

Dear all,
anyone knows how to bind upper rail power meter?
Greetings

Here the link where I bought it.

It looks like device id (ktem06) is being referenced in tuya related github repositories. Have you checked tuya binding?

No,
this is all new to me.
My Denon AVR was detected automatically with Marantz binding.
Do I have to flash powermeter bevor binding?