Abstract: The present invention provides a system for identifying gas leaks in pipe construction. The system is comprised of: a gas detection unit including a odor sensor and a wireless communication unit, said detection unit is positioned in proximity of at least one gas entrance/supply of said pipe construction, and a controlled shutoff unit including a valve an actuator unit and wireless communication unit. The shutoff unit integrated with interface entrance unit of the pipe construction and the actuator unit arranged to control the valve. Upon detection of odor measurement exceeding predefined level the actuator unit is activated to close the valve.