Yes. It tests for ammonia. It's accurate. The only thing they could do is maybe include an eyedropper to make it easier to fill the water to the fill line in the test tube. I waste quite a bit of water by having to dump it out because I put too much in the tube, and having to do it again and again because it is nearly impossible to get the meniscus to the fill line. Good product, but if you don't have an eyedropper you're going to have a bad time.
Rating:
[4 of 5 Stars!]