... new measuring instrument employing the microprocessor to realize water collection, processing, display, and reserving. This meter features small dimensions, light ... of the maximum flow-rate (qmax) exclusive: ±2%(hot water meter±3%.) the ceramic valve have these merits:not easily ... by furr,save Power Consume,against corrosion, against leakage and small abrasion. the ceramic valve have these merits:not ...