| Port | Any port in China |
| Packaging | wooden case |
| Place of Origin | Chongqing, China (Mainland) | Brand Name | BLS |
| Model Number | BLS-4530 | Power | Electronic |
| Test method | Micro Method | Power supply | 220V 50Hz Customizable |
| Display | LCD Display | Standard | ASTM D4530, GB/T 17144-1997 |
| Measuring range | Petroleum products residue carbon determination | Warranty | 2 years |
| Oils can be tested | transformer oil, lube oil, diesel fuel oil, etc. |