Chapter 446 Incomparable Defensive Power

Once the system was activated, the basic information of all the creatures within the range of detection could be sensed.

The sonar system was even more powerful, covering a range of a hundred kilometers. After it was opened, it could not only identify the position and size of all the creatures within a hundred kilometers but also detect the underwater topography.

This was equivalent to a pair of eyes on the submarine.

Even if Harry didn't know much about the submarine, he also knew the importance of the sonar system. Without it, the submarine would be a blind machine, which could get lost in the vast waters at any time.

With these three submarines' help, it should be easy for them to detect the underwater situation.

Harry hurriedly turned to the rest submarine and wanted to see their properties.

LV3 defensive submarine.

Length: 15 meters.