PROBES & TRANSMITTERS > Gas                    Target Gas       O2 Oxygen     H2S Hydrogen Sulfde     CO Carbon Monoxide     H2 Hydrogen     Cl2 Chlorine     AsH3 Asine     SiH4 Silane     HCL Hydrogen Chloride     HF Hydrogen Fluoride     F2 Fluorine     HCN Hydrogen Cyanide     COCl2 Phosphine     NH3 Ammonia     NO Nitric Oxide     NO2 Nitrogen Dioxide     N2H4 Hydrazine     O3 Ozone     TBM Mercaptane     THT Tetrahydrothiophene     CLO2 Chlorine Dioxide                         ECS SERIES-D             ECS-Series-CH              DRAWING ECS SERIES-D               dimensional details            TX MOD ECS-Series-CH               modififiaction of selected gas              TX OPR ECS SERIES-CH               operation of transmiitter