The GMA100 and GMA300 series are rack-mounted microprocessor-based control and monitoring systems for all measurement tasks. Depending on the transmitter connected, the GMA100 or GMA300 series form a discrete gas detection system for detection of toxic, oxygen or flammable gases. The wide variety of functions and high degree of flexibility available mean that the systems can be adapted for all gas detection tasks. 3 alarm thresholds per can be set per detector. Additional relay and alarm functions are available.