The Bacharach MGS-408 Series gas detection controller is an 8-channel controller that provides centralized alarming for up to 8 MGS-400 Series gas detectors. The MGS-408 Series provides power and Modbus communications to the connected gas detectors as well as 3-output relays (fault, low alarm, high alarm), integrated alarm buzzer, and strobe options to provide a complete ASHRAE 15, EN 378 safety solution.