The water control machine is widely used in campus, enterprises, government offices' water rooms, bathhouses, apartments and other internal water use occasions. It can realize simple and convenient installation and water consumption control, realize electronic and intelligent transactions and settlement, improve users' management efficiency and management means, and is the most important part of campus and enterprise all-in-one card. It has the advantages of small size, low power consumption, long service life, complete functions, water theft prevention, power off and valve closing, etc. The flow accuracy is within 5 ‰, and the copper body is used, which is high in temperature resistance。