Luster Leaf® Rapitest® Electronic 4-Way Soil Analyzer

Measures light, moisture, soil pH and soil fertility quickly and accurately. Directions include pH range requirements for over 350 plants and easy-to-follow guidelines for soil correction based on U.S.D.A. standards. The light reading determines the light level where the plant is located. Moisture is measured at root level, where it counts. No battery is required. One year manufacturer's warranty.