A water supply pipe network water quality and quantity low-power measuring system for measuring the water quality and quantity of the water supply pipe network according to an embodiment of the present invention includes: a quantity sensor unit for generating quantity information by measuring the quantity of the water supply pipe network; a water quality sensor unit that measures the water quality of the water supply network and generates water quality information; a control unit obtaining the water quality information and the quantity information from the water quantity sensor unit and the water quality sensor unit, and calculating management information according to a predetermined condition based on the water quality information and the quantity information; and a communication unit for transmitting the management information to an external device.
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