"mmc" wrote:

Wurst Marine used to sell a sender that mounted on the outside of
the tank, which meant not cutting holes in the tank. I liked the
idea, but have been using dip sticks so long I couldn't come up with
a valid excuse the buy one.

Smart, you saved some money.

I have been involved with level measuring instrumentation business
since 1986, offering all the known technologies except nuclear.

To the best of my knowkedge, there is NO level measuring technology
that is reliable in the marine environment for under $2,000 USD.

$2K buys a lot of dip sticks.

Lew