Description Water Meter for Hot & Cold water is manufactured using advanced technology, in which the register device is combinated pointers and rolling counters for convenience, clarity & correctness as well as nice appearance. The register system is designed by means of magnetic drive, which is hermetically sealed and completely separates register system from water. These water meters have high accuracy of measurement and steady error curve of flow rate. The performance is more advanced than existing ISO â?? Standard Accuracy From minimum flow-rate (Qmin) inclusive, to transitional flow-rate (Qt),exclusive: + 5% From transitional flow-rate (Qt) inclusive, to overload flow-rate (Qs), exclusive: + 2% (APS Marines & Logistics)