| 1 | The second type of instrument is a reflex densitometer . | |
| 2 | Most of the diver can also display other derived data . | |
| 3 | Reliability is poor and precision is not high while using traditional differential pressure densimeter . | |
| 4 | The zero point of the density scale is defined by having no specimen in the densitometer. | |
| 5 | It is an important component for instruments used in the printing industry such as densimeter , scanner, etc. |