Highly flexible GDS Corp Process Monitors can be used to measure hydrogen, hydrogen sulfide, oxygen levels, carbon dioxide and methane in gas streams that contain low or no free oxygen. The GDS-68SXP is designed to operate toxic gas sensors in low-oxygen streams, and the GDS-78XP is designed for infrared combustible or CO2 sensors or toxic gas measurements with 10% or higher oxygen levels.

GDS-78XP is designed for streams that contain more than 10% oxygen
GDS-68SXP is recommended for applications such as natural gas pipelines that have little or no oxygen content. Both models require very little maintenance and are designed for use in hazardous areas.