Sensor Module Detection Surface Arduino（10Pcs） Review

It works well when you want to detect the presence of water but you never get an accurate level reading. That being said, if you know what you're getting, they're not bad!

Accuracy is not very good. Hoped to use for the water level. The signal return is imprecise and seems to oscillate where it is unreliable. However, it works well as a simple water detection sensor. It has also been found that copper tubing will corrode fairly quickly for something that needs to come in contact with water. But for the price. I can throw them away when they get rusty.

So my goal was to make a simple leak detector with it, so I didn't worry about the level, just the presence of water. However, when I connect them to my Arduino, by default it outputs a LOW signal with no water. So I checked the back to see if this version differs from the others, but the signal doesn't change whether they're in the water or on land. I'm using a saltwater mix so I'm sure I have a wired connection, but the fact that I'm getting a weak signal from the start leads me to believe…