عداد الحرارة Resideo EW7731M1200 US WMZ QP1.5 PN16 DN15 M-BUS

This is a heat meter from Resideo, model EW7731M1200 US WMZ. It has a nominal flow rate of QP1.5, pressure rating PN16, and connection size DN15. Communication is via M-BUS protocol.