[C320-list] Replacement for Snake River tank monitor

[Scott Thompson]

When we purchased our boat the tank monitor most recommended on the list 
seemed to be the unit by Snake River, which I purchased and installed. 
Now it always tells me that the holding tank is 1/2 full and 1/2 empty, 
no matter what is the true situation. Does anyone know how to diagnose 
whether the problem is in the electronics vs. the sensor wiring? I 
really hope I don't have to replace the latter. And does anyone know of 
a drop in replacement?

Scott Thompson
Surprise, #653