Let me just start off by saying this product is a life saver. My 3 year old had to have his lead/hgb test for preschool. Well, his came back high! Me being the over reacting parent I got online and ordered this product, before his retesting, and I'm so glad I did.
I tested every wall/window seal in our house. All came back negative so, at first I thought maybe I was doing it wrong, bc something has to be causing it in our home bc he never stays anywhere else. Well shortly after going over all the surfaces in my house I hit me, I didn't check the back porch. Low and behold I swabbed an old cabinet that was chipping and IMMEDIATELY it turned bright pink. MY HEART SANK.
But I was so relieved to have found the cause of the potentially dangerous outcome if I hadn't. Anyways, out of all the other kits this one was buy far the absolute best value, you can test many surfaces and get immediate results, and super easy to use. I'm beyond thankful I found this kit and we'll be buying it again to retest everything after we get the porch taken care of.