FS-S smart water meter has a separate structure, composed by Internal Unit (IU) and External Unit (EU). Installed in a convenient place inside house, IU communicate with EU by wireless radio way. IU works as the user’s interface and displays relevant information, EU works as the measurement device, to measure water flow and communicate with IU.
IU works with a contactless IC card to store credit and monitor water consumption. Customers purchase credit at vending points and upload credits by swiping his IC card at the induction area of IU. IU will give signal to EU, which is installed at pipes inside house or outside, to active valve automatically to supply water.
EU calculates consumed water volume and also feedback signal and records to IU, when credits are used up, EU will close valve to stop water supply.
FS-S has twice alarm function, when the purchased credit reaches to alarm value, meter will close valve and stop water supply. Customer can resume water supply by swiping his IC card on IU. When the remains also are used up, water meter will stop supply completely and the customer needs to charge his IC card again.