A.I.R. Water Detector

I have an A.I.R. Corporation Water Detector system installed in my
aircraft. Basically, it is an annunciator light on the panel hooked to
a small probe in the fuel sump that tells me if I have water in the
fuel. A long while back, the system stopped working and I figured it
was the probe that needed replacing.

Unfortunately, I've been unable to find this company anywhere and
cannot find a source for the probe. The only location I have for these
folks is at Oakland Int'l Airport, but they seem to have moved long
ago.

Has anyone ever heard of A.I.R. Corp or know about their water
detector system?

I'd appreciate any help on this.

Thanks,

Chris