Easily measure and maintain nutrient strength levels with the waterproof Bluelab Truncheon Nutrient Meter. This meter reads in EC 0.2 to 3.6, CF 2 to 36, TDS/ppm 500 100 to 1,800 and ppm 700 140 to 2,520. Accurate within ± 4 percent of reading with a resolution of 0.1 EC, the Truncheon runs on three AA alkaline batteries and comes with a five year warranty. Batteries included.
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