The Bacharach MGS-550 Dual Gas Detector delivers flexible gas detection for refrigerants, toxic, and combustible gases. The platform supports multiple sensor types — electrochemical, MOS, catalytic bead, and infrared — for unmatched adaptability. It complies with ASHRAE 15 and EN 378 and communicates via analog signals or Modbus RTU. With three assignable relays, the MGS-550 can control alarms and safety devices directly, or integrate into a facility’s central monitoring network. Expansion from one to two sensors is quick and straightforward. Main advantages include a durable IP66 enclosure, integrated audio/visual alarm, operation from -40 to +50°C, and wide gas compatibility including CO, LPG, methane (R-50), propane (R-290), butane (R-600), ammonia (R-717), and CO₂ (R-744).