I have an instalation of several DX-9100 and 1 NCM 350 witch comunicates via ethernet to a PC. I want to add to my current installation 4 BTU meters ( to sens a fan coil unit) and electricity meters.
For the btu meter i found this one "onocon system 30" but it cost arround $$$$.
I have not found anything about electricity metering.
I will need 4 packs and the cost will be to high.
Can you suggest another alternative or another protocol??