Depth Meter

The Depth Meter is a game mechanic in Deep Sea Hunter and Deep Sea Hunter 2, the maximum depth that the player should reach is 3,500 ft, which is very deep, The Depth Meter still works the same way in the two games, But however, The first game has the maximum of 3,500 ft, while the second game has the maximum of 1,500 ft, being 1,000 less.

Sea Level
The Sea Level is an average level of the surface of one or more of Earth's seas, from which heights such as elevations may be measured. In Deep Sea Hunter series, Sea Level is indicated by Depth, using feet (FT), The numbers change fastly when going deeper or when going to brighter zones.

Depth
Depth is a feature and game mechanic in Deep Sea Hunter and Deep Sea Hunter 2, Depth indicates the sea level in that the Submarine goes, Depth works the same way in the two games, Depth indicates the sea level with feet (FT).

Trivia

 * Depth Meter is one of the game mechanics that is sea level-themed.