| Acetylene | C2H2 | MONOline 1100 | 0-100 % LEL | Infra red |  |
| Acetylene | C2H2 | MONOline121 | 0-100 % LEL/ 0-3000 ppm | Pellistor |  |
| Ammonia | NH3 | MONOline 141 | 0-1,5/3,0 Vol. % | Pellistor |  |
| Ammonia | NH3 | MONOline 514 | 0-100/250/500/1000 ppm | Electrochemical |  |
| Ammonia | NH3 | MONOline 526 | 0-250/500/1000 ppm | Semiconductor |  |
| Arsenic Hydrogen | AsH3 | MONOline 764 | 0-1 ppm | Electrochemical |  |
| Butane (R600a) | C4H10 | MONOline 112 | 0-100 % LEL | Semiconductor |  |
| Butane (R600a) | C4H10 | MONOline 121 | 0-100 % LEL | Pellistor |  |
| Carbon Dioxide (R744) | CO2 | MONOline 1090 | 0-5000 ppm/ 0-1/2.5/5/10/20 Vol % | Infra red |  |
| Carbon Monoxide | CO | MONOline 504 | 0-100/300/500/1000 ppm | Electrochemical |  |
| Chlorine | Cl2 | MONOline 654 | 0-5/10/20/50 ppm | Electrochemical |  |
| Chlorine dioxide | ClO2 | MONOline 644 | 0-50 ppm | Electrochemical |  |
| Diborane | B2H6 | MONOline 774 | 0-1 ppm | Electrochemical |  |
| Ethylene | C2H5OH | MONOline 121 | 0-100 % LEL/ 0-5000 ppm | Pellistor |  |
| Ethylene (Ethene) | C2H4 | MONOline 112 | 0-100 % LEL/ 0-1000 ppm | Semiconductor |  |
| Ethylene (Ethene) | C2H4 | MONOline 121 | 0-100 % LEL | Pellistor |  |
| Ethylene Oxide | C2H4O | MONOline 744 | 0-30/100/1000 ppm | Electrochemical |  |
| Fluorine | F2 | MONOline 794 | 0-1/-3/-10 ppm | Electrochemical |  |
| Hexane | C6H14 | MONOline 121 | 0-100 % LEL | Pellistor |  |
| Hydrogen | H2 | MONOline 121 | 0-100 % LEL | Pellistor |  |
| Hydrogen | H2 | MONOline 304 | 0-2000 ppm/ 0-1/4 Vol % | Electrochemical |  |
| Hydrogen Chloride | HCl | MONOline 704 | 0-30/100 ppm | Electrochemical |  |
| Hydrogen Cyanide | HCN | MONOline 664 | 0-10/30/100 ppm | Electrochemical |  |
| Hydrogen Fluoride | HF | MONOline 734 | 0-10 ppm | Electrochemical |  |
| Hydrogen Peroxide | H2O2 | MONOline 784 | 0-50/100/200 ppm | Electrochemical |  |
| Hydrogen Sulfide | H2S | MONOline 624 | 0-30/50/100/200 ppm | Electrochemical |  |
| Isobutane | C4H10 | MONOline 121 | 0-100 % LEL | Pellistor |  |
| LPG (Liquefied Petroleum) | C3H8/ C4H10 | MONOline 121 | 0-100 % LEL/ 0-3000 ppm | Pellistor |  |
| Methane | CH4 | MONOline 1100 | 0-100 % LEL | Infra red |  |
| Methane | CH4 | MONOline 113 | 0-100 % LEL | Semiconductor |  |
| Methane | CH4 | MONOline 121 | 0-100 % LEL/ 0-3000 ppm | Pellistor |  |
| Methanol | CH3OH | MONOline 1100 | 0-100 % LEL | Infra red |  |
| Methanol | CH3OH | MONOline 121 | 0-100 % LEL | Pellistor |  |
| Nitrogen Dioxide | NO2 | MONOline 684 | 0-10/-20/-50/-100 ppm | Electrochemical |  |
| Nitrogen Monoxid | NO | MONOline 674 | 0-20/-50/-100/-500 ppm | Electrochemical |  |
| Oxygen | O2 | MONOline 404 | 0-25/100 Vol. % | Electrochemical |  |
| Ozone | O3 | MONOline 844 | 0-1/5 ppm | Electrochemical |  |
| Pentane | C5H12 | MONOline 1100 | 0-100 % LEL | Infra red |  |
| Pentane | C5H12 | MONOline 121 | 0-100 % LEL | Pellistor |  |
| Phosgene | COCl2 | MONOline 754 | 0-1/3 ppm | Electrochemical |  |
| Phosphine | PH3 | MONOline 724 | 0-5/-10/-20 ppm | Electrochemical |  |
| Propane | C3H8 | MONOline 1100 | 0-100 % LEL | Infra red |  |
| Propane | C3H8 | MONOline 112 | 0-100 % LEL | Semiconductor |  |
| Propane | C3H8 | MONOline 121 | 0-3000 ppm/ 0-100 % LEL | Pellistor |  |
| Refrigerant R134a (Tetrafluoroethane) | R134a | MONOline 1530 | 0-5000 ppm | Infra red |  |
| Refrigerant R143a (Trifluoroethane) | R143a | MONOline 1530 | 0-5000 ppm | Infra red |  |
| Refrigerant R143a (Trifluoroethane) | R143a | MONOline 532 | 0-2500 ppm | Semiconductor |  |
| Refrigerant R404a (is R125, R143a, R134a) | R404a | MONOline 1530 | 0-5000 ppm | Infra red |  |
| Refrigerant R410a (is R32, R125) | R410a | MONOline 1530 | 0-5000 ppm | Infra red |  |
| Refrigerant R410a (is R32, R125) | R410a | MONOline 532 | 0-2500 ppm | Semiconductor |  |
| RefrigerantR407C (is R32, R125, R134a) | R407c | MONOline 1530 | 0-5000 ppm | Infra red |  |
| RefrigerantR407C (is R32, R125, R134a) | R407c | MONOline 532 | 0-2500 ppm | Semiconductor |  |
| Silane | SiH4 | MONOline 714 | 0-20/-50 ppm | Electrochemical |  |
| Solvents | | MONOline 1100 | 0-100 % LEL | Infra red |  |
| Solvents | | MONOline 121 | 0-100 % LEL | Pellistor |  |
| Sulfur Dioxide | SO2 | MONOline 634 | 0-10/-50/-100 ppm | Electrochemical |  |
| Sulfur Hexafluoride | SF6 | MONOline 1260 | 0-1000/5000 ppm/ 0-5 Vol % | Infra red |  |