Features: Smart valve controller that is used in gas/water valve by manual operation or automatic control. It could match with any gas alarm or flood alarm. When it test the gas or water, alarm will send out the signal to close the valve. The controller can be installed on household gas pipe or garden water pipe, suitable for a variety of pipe sizes, such as 1 inch, 1.25 inch. Suitable for all kinds of valves, such as gas valve or liquid valve, even spanner valve and butterfly valve. Connect the controller with any smart home system to realize intelligent link. Front-press clutch button, it its more convenient for reset.