Seamoth Sonar

The Seamoth Sonar Module is an Seamoth and in-development Upgrade Module that allow the player to navigate underwater.

It is crafted with the mini-fabricator on the Seamoth Upgrade Console, which are located in the Moon Pool. The module take up one slot in the player's inventory, and have to be placed in the seamoth upgrade panel to work.

To use it, click the left mouse button. There is a reload time before it can be used again.

It can be used to get out of caves easier at night

Trivia
Sonar (originally an acronym for SOund Navigation And Ranging) is a technique that uses sound propagation to navigate under the surface of the water. Two types of technology share the name "sonar": passive sonar is essentially listening for the sound made by vessels; active sonar is emitting pulses of sounds and listening for echoes, which this module for the seamoth uses.