DK Controller (Wall Mounted) is a gas alarm controller designed according to the national standard GB16808, the controller adopts advanced modular structure, colour touch screen man-machine interaction technology, dual power supply technology, can be simultaneously connected to the 2-way gas detector, each channel has a low limit and high limit of two levels of linkage output, built-in alarm records, support for data uploading and record query. The controller is stable, with high measurement accuracy, and adopts wall-mounted installation structure, which can be widely used in fire-fighting, metallurgy, petrochemical, environmental protection and other industries.