Water Metering is a broad term that can be used to describe Automatic Meter Reading (AMR) or Water Metering Infrastructure (AMI) programs. In general, the technology enables automatic communication between meters or sensors and a utility.

AMR systems enable one-way communication from a meter to a meter-reading device. Data is collected at regular, pre-determined intervals (daily, weekly, monthly, etc.) by walk-by, drive-by, or fixed network methods, and is provided to the utility for billing.

AMI is an integrated system of smart meters, communication networks, and data management systems that enables two-way, real-time communication between utilities and customers.

The water filling convenience is a mobile payment software develeped by the Kadmus company. It supports the prepaid and afterpaid payment options. The prepaid option is realized by the Kadmus blurtooth card reader. The afterpaid option is realized by the customer logon.

Products are made up of the mobile card reader, special RF card and cellphone applications. The water filling convenience is a mobile payment software developed by the Kadmus company. It supports the prepaid and water meter reader by the human. The prepaid option is realized by the Kadmus bluetooth card reader. The card reader uses the bluetooth 4.0 communications technology. It realizes the card data transfer in the small distance. It is used with the water filling convenience mobile sofware. Thus the residents can submit the payment safely without going outside. The products is low cost. It can operate cross the business without the special networks. It can be used by turning on the power supply. It can be widely used for few kinds of smart meter payment.