The Suyi regional linkage sound and light alarm is developed and produced to meet the design, installation, and application requirements of combustible gas detection and alarm, as well as toxic and harmful gas detection and alarm in hazardous chemical production and storage sites. Using 1-32 input 4-20mA/RS485 signals, output standard Modbus Rtu communication protocol to the linkage area sound and light alarm to achieve linkage alarm function. Touch screen display with alarm testing, monitoring screen, historical alarm records, historical curves, system settings and other functions. SY-XLD gas detection alarm area linkage sound and light alarm