Luster Leaf Digital Soil Test Kit pH -N-P-K

Quickly and easily tests soil samples measuring levels of pH, Nitrogen, Phosphorus, and Potash.

• Reads test colors utilizing advanced LED digital technology
• Just push test button to get results in a few seconds
• Includes pH preferences for over 450 plants and how to adjust soil pH
• Booklet has fertilizer guidelines based on nitrogen, phosphorus and potash test results.
• Performs 25 tests: 10 for pH and 5 each for Nitrogen, Phosphorus and Potash