1. Water Level Sensor for Leak Detection . Electronics and water are famous for their destructive relationship, but this first sensor puts this common conception to the test.

A low-cost (~$100), do-it-yourself (DIY) ultrasonic water level sensor/datalogger has been designed, constructed, and tested for use in education, citizen/community science, and research settings. The ...

I now have it "working" using two types of sensors. I have a float sensor which just gives me a binary on/off. This works fine and would probably do what I need. Bonus for it being made for wet ...

[Mike] lives in a temperate rainforest in Alaska (we figured from his website’s name) and uses a 570 gallon oil tank to supply his furnace. Until now, he had no way of knowing how much oil wa… ...