| Acetic Acid | CH3COOH | GSBM 1680 (Ex) | 0-30 ppm | Electrochemical |  |
| Acetylene | C2H2 | GSIM 1100 EX | 0-100 % LEL | Infra red |  |
| Acetylene | C2H2 | GSPM 121 EX | 0-100 % LEL | Pellistor |  |
| Ammonia | NH3 | GSEM 517 EX | 0-100/250/500/1000 ppm | Electrochemical |  |
| Ammonia | NH3 | GSPM 141 EX | 0-1,5/3,0 Vol % | Pellistor |  |
| Arsenic Hydrogen | AsH3 | GSEM 767 Ex | 0-1 ppm | Electrochemical |  |
| Arsenic Hydrogen | AsH3 | GSBM 767 (Ex) | 0-0,2 ppm | Electrochemical |  |
| Bromine | Br2 | GSBM 900 (Ex) | 0-0.3 ppm | Electrochemical |  |
| Butane (R600a) | C4H10 | GSPM 121 EX | 0-100 % LEL | Pellistor |  |
| Butane (R600a) | C4H10 | GSSM 112 EX | 0-100 % LEL | Semiconductor |  |
| Carbon Dioxide (R744) | CO2 | GSIM 1090 Ex | 0-5/10/20 Vol % | Infra red |  |
| Carbon Monoxide | CO | GSEM 507 EX | 0-100/300/500/1000 ppm | Electrochemical |  |
| Chlorine | Cl2 | GSEM 657 EX | 0-5/10/20/50 ppm | Electrochemical |  |
| Chlorine dioxide | ClO2 | GSEM 647 EX | 0-5/10/20/50 ppm | Electrochemical |  |
| Chlorine Trifluoride | CLF3 | GSBM 1463 (Ex) | 0-0,3 ppm | Electrochemical |  |
| Diborane | B2H6 | GSEM 777 Ex | 0-1 ppm | Electrochemical |  |
| Ethylene | C2H5OH | GSPM 121 EX | 0-100 % LEL/ 0-5000 ppm | Pellistor |  |
| Ethylene (Ethene) | C2H4 | GSPM 121 EX | 0-100 % LEL | Pellistor |  |
| Ethylene (Ethene) | C2H4 | GSSM 112 EX | 0-100 % LEL/ 0-1000 ppm | Semiconductor |  |
| Ethylene Oxide | C2H4O | GSEM 747 EX | 0-30/100 ppm | Electrochemical |  |
| Fluorine | F2 | GSEM 797 Ex | 0-1/-3/-10 ppm | Electrochemical |  |
| Fluorine | F2 | GSBM 1400 (Ex) | 0-1/-3/-10 ppm | Electrochemical |  |
| Formaldehyde | CH2O | GSBM 1970 (Ex) | 0-2 ppm | Electrochemical |  |
| Hexane | C6H14 | GSPM 121 EX | 0-100 % LEL | Pellistor |  |
| Hydrazine | N2H4 / C2H4(NH2)2 | GSBM 2460 (Ex) | 0-1 ppm | Electrochemical |  |
| Hydrogen | H2 | GSEM 307 EX | 0-2000 ppm/ 0-1/4 Vol % | Electrochemical |  |
| Hydrogen | H2 | GSPM 121 EX | 0-100 % LEL | Pellistor |  |
| Hydrogen Bromide | HBr | GSBM 3480 (Ex) | 0-9 ppm | Electrochemical |  |
| Hydrogen Chloride | HCl | GSEM 707 EX | 0-30/100 ppm | Electrochemical |  |
| Hydrogen Cyanide | HCN | GSEM 667 EX | 0-10/30/100 ppm | Electrochemical |  |
| Hydrogen Fluoride | HF | GSEM 737 EX | 0-10 ppm | Electrochemical |  |
| Hydrogen Peroxide | H2O2 | GSEM 787 EX | 0-50/100/200 ppm | Electrochemical |  |
| Hydrogen Peroxide | H2O2 | GSBM 3980 (Ex) | 0-30 ppm | Electrochemical |  |
| Hydrogen Selenide | H2Se | GSBM 3260 (Ex) | 0-0,2 ppm | Electrochemical |  |
| Hydrogen Sulfide | H2S | GSEM 627 EX | 0-30/50/100/200 ppm | Electrochemical |  |
| Hydrogen Sulfide | H2S | GSBM 1261 (Ex) | 0-1 ppm | Electrochemical |  |
| Isobutane | C4H10 | GSPM 121 EX | 0-100 % LEL | Pellistor |  |
| LPG (Liquefied Petroleum) | C3H8/ C4H10 | GSIM 1100 EX | 0-100 % LEL/ 0-100 Vol % | Infra red |  |
| LPG (Liquefied Petroleum) | C3H8/ C4H10 | GSPM 121 EX | 0-3000 ppm | Pellistor |  |
| Methane | CH4 | GSIM 1100 EX | 0-100 % LEL/ 0-100 Vol % | Infra red |  |
| Methane | CH4 | GSPM 121 Ex | 0-100 % LEL | Pellistor |  |
| Methane | CH4 | GSSM 113 EX | 0-100 % LEL | Semiconductor |  |
| Methanol | CH3OH | GSIM 1100 EX | 0-100 % LEL | Infra red |  |
| Methanol | CH3OH | GSPM 121 EX | 0-100 % LEL | Pellistor |  |
| Nitric Acid Vapour | HNO3 | GSBM 1783 (Ex) | 0-6 ppm | Electrochemical |  |
| Nitrogen Dioxide | NO2 | GSEM 687 EX | 0-10/-20/-50/-100 ppm | Electrochemical |  |
| Nitrogen Monoxid | NO | GSEM 677 EX | 0-20/-50/-100/-500 ppm | Electrochemical |  |
| Nitroux Oxide | N2O | GSIM 1570 | 0-1000/2000 ppm | Infra red |  |
| Oxygen | O2 | GSEM 407 EX | 0-25/100 Vol % | Electrochemical |  |
| Ozone | O3 | GSEM 847 EX | 0-1 ppm | Electrochemical |  |
| Pentane | C5H12 | GSIM 1100 EX | 0-100 % LEL | Infra red |  |
| Pentane | C5H12 | GSPM 121 EX | 0-100 % LEL | Pellistor |  |
| Phosgene | COCl2 | GSEM 757 EX | 0-1/3 ppm | Electrochemical |  |
| Phosphine | PH3 | GSEM 727 EX | 0-5/-10/-20 ppm | Electrochemical |  |
| Phosphine | PH3 | GSBM 5000 (Ex) | 0-1 ppm | Electrochemical |  |
| Propane | C3H8 | GSIM 1100 EX | 0-100 % LEL/ 0-100 Vol % | Infra red |  |
| Propane | C3H8 | GSPM 121 Ex | 0-100 % LEL | Pellistor |  |
| Propane | C3H8 | GSSM 112 EX | 0-100 % LEL | Semiconductor |  |
| Refrigerant R134a (Tetrafluoroethane) | R134a | GSIM 1530 EX | 0-10000 ppm | Infra red |  |
| Refrigerant R134a (Tetrafluoroethane) | R134a | GSSM 532 EX | 0-2500 ppm | Semiconductor |  |
| Refrigerant R143a (Trifluoroethane) | R143a | GSIM 1530 EX | 0-10000 ppm | Infra red |  |
| Refrigerant R143a (Trifluoroethane) | R143a | GSSM 532 EX | 0-2500 ppm | Semiconductor |  |
| Refrigerant R404a (is R125, R143a, R134a) | R404a | GSIM 1530 EX | 0-10000 ppm | Infra red |  |
| Refrigerant R404a (is R125, R143a, R134a) | R404a | GSSM 532 EX | 0-2500 ppm | Semiconductor |  |
| Refrigerant R410a (is R32, R125) | R410a | GSIM 1530 EX | 0-10000 ppm | Infra red |  |
| Refrigerant R410a (is R32, R125) | R410a | GSSM 532 EX | 0-2500 ppm | Semiconductor |  |
| RefrigerantR407C (is R32, R125, R134a) | R407c | GSIM 1530 EX | 0-10000 ppm | Infra red |  |
| RefrigerantR407C (is R32, R125, R134a) | R407c | GSSM 532 EX | 0-2500 ppm | Semiconductor |  |
| Silane | SiH4 | GSEM 717 EX | 0-20/-50 ppm | Electrochemical |  |
| Silane | SiH4 | GSBM 5000 (Ex) | 0-1 ppm | Electrochemical |  |
| Solvents | | GSIM 1100 EX | 0-100 % LEL | Infra red |  |
| Solvents | | GSPM 121 Ex | 0-100 % LEL | Pellistor |  |
| Sulfur Dioxide | SO2 | GSEM 637 EX | 0-10/-50/-100 ppm | Electrochemical |  |
| Sulfur Hexafluoride | SF6 | GSIM 1260 Ex | 0-5 Vol % | Infra red |  |
| Sulfur Trioxide | SO3 | GSBM 983 (Ex) | 0-0,2 ppm | Electrochemical |  |