Luster Leaf 1662 Professional Soil Test Kit with 40 Tests
- 50 safe, easy, hands-on tests for nitrogen, phosphorus, and potassium using nonhazardous TesTab.
- Each kit includes the necessary apparatus, simple diagrammed instructions, and laminated color chart.
- Specifically designed to meet The GLOBE (Global Learning and Observations to Benefit the Environment) Program standards..
- Does NOT come with a soil pH test, only tests for N-P-K.