These strips are great to test the water in our Eden Tower. When I ran out and couldn’t find strips like these in gardening centers close by, I bought a testing kit where I put some water from the tower in a vial and then added a few drops of the testing liquid. Unfortunately, it wasn’t as precise as the strips (the results could have been anywhere from 5.0 to 6.5, based on the color). These strips are far more accurate and provide a much better reading. As long as I have hydroponics, I won’t be without these strips!
