EC-98330 Conductivity Nutrient Test Strip

Ideal for plants requiring higher EC values, this tester features an expanded range of up to 6.0 mS/cm (EC), 3000 ppm (500 ppm scale), and 4200 ppm (700 ppm scale).
Technical Parameters Measuring Range EC 0.4 ~ 6.0 EC CF 4 ~ 60 CF TDS 200 ~ 3000 ppm (EC x 500) TDS 280 ~ 4200 ppm (EC x 700) Accuracy EC ±4% CF TDS TDS Resolution EC 0.05 EC (0.4 ~ 4.4 EC); 0.1 EC (4.4 ~ 6.0 EC) CF 1 CF TDS 50 ppm (EC x 500) TDS 70 ppm (EC x 700) Operating Temperature 0 ~ 50? (32 - 122°F) Battery 2×1.5V