Features: 1Accurate Sensor: Adopt semiconductor sensor, with high stability and small sensitivity drift. Support sensor fault detection and microprocessor intelligent control. 2Extensive Using: Widely used for automatic control of gas pipeline ball valve, gas cylinder ball valve, various connection alarms, other gas and liquid valves. 3Good in Control: The changeover switch enables the manipulator to switch automatically and electrically. In case of power failure and maintenance, the valve can be opened manually to double the safety. 4Auto Cutting Off: The automatic closing valve is fast and reliable. When the alarm is given, the main valve at home is automatically closed, and the power supply is completely cut off, which is highly safe. Insulated sealed flame retardant shell is adopted. Anti radio interference. 5Leakage Alarm: Used in places where combustible gas may have leakage, such as liquid fossil oil gas, natural gas, biogas, etc. Package included: 1&nbspx&nbspSolenoid&nbspValve 2&nbspx&nbspUser&nbspManual 1&nbspx&nbspSensor 2&nbspx&nbspWall&nbspPlug 2&nbspx&nbspScrew