The QD6000 type multi-point monitoring gas detection and alarm controller is used to monitor the concentration value of combustible gas or toxic gas in the air. It can be equipped with multiple detection probes and simultaneously carry out centralized control of multiple points. This system adopts a microprocessor as the control unit and high-performance catalytic gas-sensitive elements as the detection sensor, with high sensitivity and fast response speed. When the concentration of combustible gas in the environment reaches or exceeds the preset alarm value, the controller immediately issues an audible and visual alarm and drives the exhaust or other peripheral actions to prevent explosions and fire accidents, thereby ensuring life. This system can be widely used in factories, oil depots, liquefied gas stations, gas stations, gas stations, spray painting rooms and other places that require fire and explosion prevention for safety detection and alarm.