Have a Smart oil gauge on my tank. Can track usage and get notifications on my phone if levels are getting low. They are local out of Danbury, smartoilgauge.com
Being a tech geek I said "sure"
Anyway, no longer being used by them as too much trouble and they said would I mind leaving it there unused as it didn't interfere with anything ( the old float gauge was still there) and they had a cost $, i.e., tech time, to remove it. Again no problem. When I had my tank replaced (last year?) the smart gauges went with it.
IDK (or care) if it was a smartoilgauge.com product.