Based on a digital platform that provides multiple communication and integration options, the line of fixed gas detectors includes basic to heavy-duty models with sensor technology to match the specific refrigerant, application and safety requirements of the refrigeration system. The analog or RS485 Modbus connection accommodates communication to a central system. Stand-alone gas-detection units with integrated relays can be connected to external systems directly to activate alarm devices. For plug-and-play use, all gas-detection units are factory preconfigured to match refrigerant and PPM setting requirements. An integrated calibration routine means potentiometers and multimeters are no longer required for calibration. Precalibrated and factory-certified sensor replacements are available across all sensor types.