Inaccurate for me
I wanted to use this for my two aquariums.  I use well water with a known pH value (state lab & API drop test) with a mixture of reverse osmosis water (also known ph).  I was hoping to pin down my pH in the tank which is likely somewhere between 7 and 7.5, but the API drop tests are hard to differentiate in this range.  So I already had a ball park idea what the answer should be.  These strips were easily a full point too low (acidic when it is definitely basic).  Side note--I was using a pipette to place my drops on the strip.<br /><br />Also, some strips are test side down in the kit.  Others are test side up which makes it hard to keep your fingers off.  They really need to be all down to keep from being contaminated.
Rating: 1 stars