Determines soil Ph and total combined NPK in one handy unit. Both tests can be completed in about one minute. Requires one AA Battery.
Electronic Soil Tester, complete instructions for testing pH and nutrient levels, tips to adjust pH and soil nutrition and a chart with the pH preferences for over 350 plants.
The dual-purpose Rapitest Electronic Soil Tester is designed for simplicity of use with accurate results. It tests both soil pH (acidity) and soil fertility.