... BUS module6,Temperature sensor 14,Obturating ring7,Waterproof circuit board 15,Reflective surface8,Circuit board protective cover 16,Warning signsBeing ... DN150 DN200 DN250 DN300Common flow q f(m3/h) 15 25 40 60 100 150 250 400 600Maximum flow q ... years as a option)level of protection IP67WAH2000 Heat Meter Automatic Meter Reading and Data Management SystemsMain feature1\Friendly interface,convenient ...