Portfolio SITRANS-Heat / Cold meter available with M-Bus communication WFN542- Heat/Cold meter with M-Bus and W.M-Bus communication 7KT1-Electricity Meter with M-Bus communication WTT561- M-Bus communication WFM54- Heat/Cold meter M-Bus and W.M-Bus communication 2WR5 meter – Heat / Cold meter with M-Bus communication 1 … 18 19 20 21 22 … 35