Luster Leaf Rapitest 4 Way Analyzer (3/Cs)
Measures four different levels for fertilizer, light, moisture and pH. Includes instructions and guides for all four measuring levels. Instantly tells you the fertility of your soil. Instantly tells you how acid or alkaline your soil is by measuring the pH level. Instantly tells you when to water your plants by measuring the moisture level. Measures the light intensity in foot candles.