Hydroponics 4-Way Test Kit Order Code# 3561-01
Allows the hydroponic hobbyist to maintain proper nutrient balance of nitrogen, phosphorus and potassium to achieve optimum growing conditions in soil-less cultures.
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Contains 10 stock solutions of macronutrients and trace elements; sufficient to prepare five liters of each mixture. Includes Plant Nutrition Studies handbook.
The electronic Salt TRACER PockeTester™ measures the Sodium Chloride level in salt water pools with a range from 0 to 9,999 ppm. TDS is measured from 0 to 9,999 ppm and Temperature from 32.0° to 149°F.
The SCL-12 soil lab is a self-contained, electronic soil analysis laboratory that provides accurate answers anywhere for fifteen soil factors, including available forms of macronutrients and critical micronutrients.