The switch panel has some more parts in it. The main water and main fuel tank have now gauges to show how full they are. Makes life easier! There is 12V outlet for the icebox, and the red and green lights tell the status of thruhull valves. Red=open and green=closed.
Water tank sender in place
The senders for the new gauges are based on ultrasound so they have no moving parts. They emulate 0-180ohm gauges in Ariadne’s setup. The problem is that they emulate, since the gauges were in the first place VDO new ones which look like analog but are digital gauges. They do not understand the emulated senders so the values were random and unstable. So I had to change the gauges to truly analog ones. After I changed them everything is ok, senders work great!