BWLK-FQX Ignition Failure Alarm Interlock Device (combines ignition failure, under-voltage, and leakage), which features the function of interlocking control over gas valves for ignition failure, under-voltage, and leakage, and also alarms. It is equipped with a reserved 485 communication interface, and can simultaneously switch between manual/automatic status.

Composed primarily of explosion-proof control boxes, flame detectors, explosion-proof pressure switches, and gas detection transmitters, these are designed in a modular format for compactness and ease of installation and tuning.

The device is primarily used in industrial furnaces or steel ladle baking units for industries such as petrochemical, metallurgy, ceramics, and environmental protection.