Introducing our upgraded lead testing kit with 30 swabs, providing quantitative results for detecting lead in homes or offices. The kit features specific lead concentration ranges and a comparison chart from 0 ppm to 1000 ppm for accurate detection of low lead levels. Simply moisten the swab tip, rub it on the surface, and compare the color change with the reference chart. Suitable for various surfaces, our kit prioritizes your safety and well-being.