Would anyone use it if it were offered as an easy to install package with gauge?

Dont see why not.

I think it would be great...show a issue before it got out of hand...hopefully

Do you have one in mind. I have 3 livorsi ones that do not work and would like to have some new ones but can't seem to find any.

I have the project underway, I have designed a new sensor prototype to be in my possession hopefully by the end this month. At the moment I only have a digital gauge combo for trials so it will still be a while. Readings from 32deg.F to 240deg.F.

The overall design incorporates an integrated ground so faulty readings due to a "lack of ground" situation are discouraged. The sensor itself will install into the upper vent hole for the drive lube with an additional safety lock which is still on the drawing board.

The conductors will travel through a modified trim sensor grommet/wedge or straight through the transom via a clamshell and 5200 or some other aesthetically pleasing design.

Keep us up to speed if you would please.

Gladly

I have used the Livorsi model before and while I don't remember what the max temp of the drive got to, I do think it was over 240 deg. I thought it was well over 300 deg. The gauge may not have been reading correctly....I'm not sure what the temp should have been since it was the only one I had ever used. I would hate to see you do all of this work and not have a high enough temp reading. Keep us posted.
Eddie

I looked into this a while back and located the concept in the pic below which was patented in 1998. I also remember an article published several years ago in one of the boating magazines evaluating drive showers and their effect on gear lube temperature. I can't remember the temperatures they were running, but I will see if I can find the article.

GAFFRIG,,,,they work !