Multi Calibration Gas: 25 PPM Hydrogen Sulfide, 100 PPM Carbon Monoxide, 2.5% (50% LEL) Methane, 19% Oxygen, Balance Nitrogen (29 Liter)
| Country | USA |
| Manufacturer | Baker Publishing Group |
| Binding | Paperback |
| UnitCount | 1 |
| EANs | 9780801012624 |
| ReleaseDate | 0000-00-00 |