ZZC
| gas monitor | range | resolution ratio |
| Oxygen (O2) | o- 30.0% | 0.001 |
| combustible gas | 0- 100% LEL | 1%LEL |
| carbon monoxide (CO) | o- 500 ppm | 1 ppm |
| Hydrogen sulfide (H2S) | o- 100 ppm | 0.1 ppm |
| Sulfur dioxide (SO2) | o- 20 ppm | 0.1 ppm |
| hydrogen cyanide (HCN) | o- 50 ppm | 0.2 ppm |
| Ammonia gas (NH3) | o-100 ppm | l ppm |
| Hydrogen Phosphate (PH3) | o- 20 ppm | 0.01 ppm |
| Chlorine (Cl2) | 0- 50 ppm | 0.05 ppm |
| Nitrogen dioxide (NO2) | 0- 50 ppm | 0.1 ppm |
