Product Description：

Model SSK-ZL-N4 Combustible Gas Alarm Controller is an indoor standalone bus-type controller. It receives, displays and transmits alarm signals from gas detectors, and performs gas leak monitoring, alarm notification and linkage control.

It is applicable to gas leak monitoring scenarios (such as commercial kitchens, boiler rooms, chemical workshops, storage areas and other indoor non-explosion-proof locations). Used as part of gas detection and alarm systems, it provides early warning of leakage risks to prevent safety accidents including explosion and poisoning.

Product Features：

※ Automatic fault detection, accurately indicating fault location and type. 

※ Single-loop 2-wire bus (M-Bus) communication with non-polarized signal design. Equipped with automatic protection, the system features strong anti-interference performance, cost-effective wiring and easy installation. 

※ Built-in data storage to record alarm records, power-on/power-off time and other data; data will not be lost upon power failure. 

※ Automatically identifies detector types and alarm points. Supports monitoring of multiple detector types (%LEL, %VOL, μmol/mol) within one system without manual configuration. 

※ RS485 bus communication interface (standard Modbus/RTU protocol). Supports networking with host control systems for remote monitoring, greatly improving the timeliness and accuracy of monitoring. 

※ Built-in 2 sets of relay contact outputs for linkage control of exhaust fans, solenoid valves and other devices. 

※ LCD display with full Chinese menu operation.