we have used the "Tank Tender" for both our FW and fuel on the same display for 10 years now and they have never failed, are always accurate and easy to install. The hardest part is determining the correct amount in your tank for the reading on the gage but even that is not too difficult.
__________________
Chesapeake Bay, ICW Hampton Roads To Key West, The Gulf Coast, The Bahamas
Tank tender uses a column of liquid to measure the levl in inches. After that you determine the volume. It's dog simple to install. You just run thin tubing betwen the meter and the bottom of the tank. There is nothing about the sensor that is electrical because it's just a tube of air.
__________________
Paul Blais
s/v Bright Eyes Gozzard 36
37 15.7 N 76 28.9 W
I use a system that has a remote panel. It is electric however. It has 3 legs with floats on the end. It controls a 4 level LED lighting panel. Empty(red), low(orange), Med(yellow), High(green). I have one on my Fresh water and one on my Holding tank. The holding tank panel I have changed the LED's around and made them opposite.=empty(green) High(red)
__________________
Wheels
For God so loved the world..........He didn't send a committee.