Cheap tank level sending units - and a thought about dual station

[olewsaa]

Thanks for the positive feedback.
All my code is posted on github, yacht computer. Project pages in signature. I use Arduino sketch as I'm more familiar with Arduino IDE and like the 
low level language C. Micropython is another nice option. 

I will update the code and experiences with the new sensors. 
I plan to test the blackwater tank with the new sensor over the weekend. The spec claim that it could read through metal.
This is the sensor.
 

Ole