Hydrogen Sulfide Analyzers Model 3010BX Hydrogen Sulfide (H2S) Analyzer Patented technology for Trace H2S measurementIntegrated sampling system with patented Elimination Cell Block™Compact and cost competitive designFront loading H2S sensorFor use in hazardous area with global regulatory approval Model 3010BX Model 3000RS Portable Hydrogen Sulfide (H2S) Analyzer Portable H2S for spot-checking and fast verification of H2SIntegrated sampling system with patented Eliminator Cell Block™High accuracy (±1%) as compared to sample tubes (±10 to 15%) At only 2.3kg, it is the smallest, lightest and most accurate portable in the industryFor use in hazardous area with global regulatory approval Model 3000RS