I have installed a SIMARINE Pico and ST107 Tank Module was installed to monitor the volume of the two 50 gallon water tank and the 75 gallon diesel fuel tank. The tank already has a resistive sending unit, but I installed two new sending units in the water tanks:
THE ST107 can monitor up to four tank levels and/or temperatures and up to three battery voltages. Right now, only the three tank sending units are connected:
Note that I have fallen in love with wire ferrules, which are attached to the wire using a special crimping tool. The ferrules make high-gauge (small diameter) wire much easier to work with and secures low gauge (large diameter) wire more securely to clamp-type junctions (like those used on Victron controllers). Eventually, I will add the ability to monitor the refrigerator temperature (because occasionally the compressor motor sticks).
Here is a view of the PICO display of the tank volumes:
The PICO display will eventually also be used to also monitor a second house batter bank that will be placed under the V-berth for the windlass and a bow thruster that will be installed this summer.