Portfolio 7E.46-Available with M-Bus communication I/O & SENSORS ECCM32-Heat / Cold meter with M-Bus communication ECCM42-Heat / Cold meter with M-Bus communication SensoStar E-Available with M-Bus and W.M-Bus communication Gradus-Heat Cost Allocation with W. M-Bus communication 1 … 23 24 25 26 27 … 35