Wärmezähler von Resideo EW7731M5200 US WMZ QP15 - PN25 DN50F - M-BUS

This is a heat meter from Resideo, model EW7731M5200 US WMZ. It has a nominal flow rate of QP15, pressure rating PN25, and connection size DN50 with flanged ends (F). Communication is via M-BUS protocol.