Bacharach announces the MGS-402 gas detection controller for refrigerant, toxic and combustible gas detection applications. The system is designed for safety compliance in mechanical rooms, cold storage facilities, walk-in freezers and cold room applications to -40° F/C. Powered by 110-240V AC and provides three 10A output relays (fault, low alarm, high alarm) to initiate auxiliary ventilation or restrict refrigerant flow. Has a built-in audible alarm and high-visibility visual alarm that eliminates the need for an external horn/strobe in close proximity.