• Determines soil pH and fertility in one unit
• Soil testing in about one minute
• Includes comprehensive guide listing ideal pH ranges for over 350 plants
• Assembled in USA of foreign and domestic parts.
• Requires 1 AA battery

This dual purpose electronic meter tests soil pH and nutrient levels.  Soil pH controls how well plants utilize the nutrients available in your soil.  All plants have a particular pH preference, so it's important to know the pH level of your soil.  You can then choose plants with the same pH preferences, avoid those that will not do well in your soil, or work to adjust the soil pH level.