The Bluelab Nutrient Meter is designed for hydroponic crops that require a higher than normal level of EC or CF (electrical conductivity or nutrient solution concentration) during their growing cycle. completely waterproof The length of 40.7cm allows for convenient mixing of the nutrient solution directly in the tank! Does not require calibration (factory calibrated)! Provides measurements in EC , CF, ppm700 and ppm500 scales Auto on/off function 5 years warranty EC measurement range: 0.2 - 3.6 EC measurement accuracy: ± 0.1 at 25°C
