Main performance and features:  

① S-BUS bus system signal transmission (+24V, GND, S+, S-)  

② LED display  

③ Resistant to RF/EMI interference  

④ Two-level alarms: low-limit alarm and high-limit alarm  

⑤ Automatic fault monitoring  

When any of the following conditions occur, the controller can emit a distinct sound and light fault signal that is significantly different from the gas alarm signal:  

When there is a short circuit or disconnection fault in the connection line between the controller and the detector;  

When there is a detector fault;  

When there is a main power supply/backup power supply fault.  

⑥ Linked output, with configurable linkage output methods and logic  

Two-way linkage output can control two external devices (fans or solenoid valves).  

⑦ Power conversion function  

Main and backup power supply with seamless switching between them, and indicators for the working status of the main and backup power supplies.  

⑧ Ability to save 999 alarm records and 999 fault records separately  

Query the last 999 alarm and fault records, with information retained even in power failure.  

⑨ Battery protection function  

When only the backup power is working and the battery voltage is low, the system automatically shuts down to protect the battery.  

⑩ TTL/MODBUS host communication interface for communication with the host computer.