Ultrasonic Water Meter, Heat Meter, Gas Meter manufacturer / supplier in China, offering WiFi Smart Remotely Control The Valve on The Mobile Phone WiFi Brass Solenoid Valve Water Valve, High Sensitivity Battery Powered Water Leak Alarm Motorized Brass Ball Valve with Manual Operation, Motorized 2-Way Stainless Steel Ball Valve AC/DC 9-24V Electric Actuated Auto Return Flow Control Manual Override Ball Valve and so on.