Tester Needs No Batteries
Students can check for excess acidity in soil, obtaining immediate and easy-to-read results. It is recommended for field applications, although it works well for classroom samples, too. It also comes with instructions that include guidance on ways to adjust soil pH to achieve maximum growth potential. pH range: 3–8. Size: 1 3/4" x 1 3/4" x 6 1/4".