Nitrite 0-25 ppm, Nitrate 0-500 ppm Two Pad Test Strip [Vial of 50 Strips]

Great item and delivery time.

Works good for testing Johnson grass for nitrites.

These test strips are great they give me a idea of the range. It took some getting use to because it goes off of color and the range can vary. But compared to my other tests its in the same range. But I can complain its a lot faster then pulling a kit out. I can easily dip and know if my level are going down quickly. I still used the hanna checker to get a better idea of the number but this is great for quick tests to make decisions. Very easy to use. The tests last a while and are cheaper then buying reagant refills for my testers. You should still be testing with other tests to get a better idea of the number but this is a huge time saver. and no mess or cleaning.

Great product, I compred it with a much more sophisticated test kit and the results were similar. The secret is to shake off the excess of water. The reading is pricese after 30s after that it turns darker but I guess that's because it dries up. Really easy to use if you want something simple!

Compared to other test strips they are very accurate as well.

We wanted to check our water quality and this item did the job, making us feel secure in knowing more about the quality of our water.