| O2 | Oxygen | 0-30% VOL. |
| H2S | Hydrogen sulfide | 100 PPM |
| CO | Carbon monoxide | 1000/2000 PPM |
| H2 | Hydrogen | 0-100% LEL |
| NH3 | Ammonia | 100 PPM |
| NO2 | Nitrogen dioxide | 30 PPM |
| NO | Nitric oxide | 1000 PPM |
| HCN | Hydrogen cyanide | 100 PPM |
| HCL | Hydrogen chloride | 30 PPM |
| CL2 | Chlorine | 20 PPM |
| SO2 | Sulphur dioxide | 100 PPM |
| Phi | Phosphine | 10 PPM |
| C2H40 | Ethylene oxide | 100 PPM |
| O3 | Ozone | 1 PPM |
| CO2 | Carbon dioxide | 100% VOL. |
| C2H2 | Propane | 0-100% LEL |
| Ch | Methane | 0 -100% LEL |