But there are certain things regarding the characteristics of submarine control. Is it a manometer like a large dial with a moving hand? That’s a manometer! It is used to measure water pressure, so that you can determine the depth of the ship. Friends This year was supposed to be great mug. And these are new style probes, right? Yes, those are temperature gauges in different layers of water. What about these tools? I do not understand what they are used for? Professor, here I need to explain a few words for you to clarify.