I’m starting to wonder if there are white label ultrasonic sensors out there since this looks like the Beckett. It also looks like this won’t support 120 AC. I’m in the USA and our namby pamby grid can’t handle it.

Thank you so much for this detail! You’ve made it sound like a fun (and wonderfully over engineered) solution. I may just give it a go because it sounds like I may learn a lot!

This is a really cool project. I do have a pi zero laying around…

Have you had any issues with this setup? Also was the ir necessary because of the interior of the box?

I think this is exactly what I’m looking for! Have you used these in the past? I like that I can keep the float

I’ve seen a few that screw into the float sensor location. But maybe a DIY would be a good path!