| Project | Parameter |
| Measuring Range | 0-10 |
| Resolution | 0.1% |
| Measurement Accuracy | (± 0.4%) |
| Digital Display Accuracy | 0.1% ± 1 word |
| Output Drift | <5% / year |
| Gas source | "GB / T 3863-2008 Industrial Oxygen" "GB / T3864-1996 Industrial Nitrogen" |
| Test environment | 23 ° C ± 2 ° C, humidity: 50 ± 5% |
| Input pressure | 0.2-0.4MPa |
| Work pressure | 0.1MP |
| Sample type | Self-supporting materials and non-self-supporting materials |