The Gas Detector Controller by Hansen Technologies is designed to provide centralized audio-visual alerts and status information for a network of gas detectors. Available in two models, the HGD-C-2 supports up to two gas detectors, while the HGD-C-8 accommodates up to eight detectors, facilitating clear visualization of alarm or fault statuses from a location outside the monitored space, as required by many regulatory codes and standards. The controller features an LCD screen and LEDs (HGD-C-8) or LEDs only (HGD-C-2) to indicate power, connectivity, high alarm, low alarm, and fault statuses for each connected detector. It includes SPDT relays for any high alarm, low alarm, or fault status and can function as a MODBUS slave device, enabling seamless integration with existing control systems. This controller is suitable for use in industrial refrigeration engine rooms, cold storage rooms, processing rooms, truck docks, supermarkets, and large institutional and commercial buildings, ensuring safety and compliance in environments where gas detection is critical.