The prepaid water meter is a smart water meter with both mechanical and electronic readings. It can control users overspend by prepaying for an IC card. It is suited to the metering and billing of urban residential water use, using water after fee paid that gets rid of the inconvenience of on-site visit for meter reading and tariffing.

Lorawan wireless water meter using of advanced wireless transmission technology, it transforms metered information of conventional mechanical water meter into electrical signal have it stored by micro-electronics control circuit. It is able to automatically read the metering data via wireless remote network and control the close open of the valve.