Cheap coal filters for greenhouses, hospitals, the food industry, the chemical industry, cooking, etc. It contains active coal, type CTC70 cylindrical in pellet of 4 mm bearing a relative humidity of 70%.
Waterproof digital meter of EC, TDS and temperature. Fast, stable and accurate, with automatic compensation of temperature. Automatic calibration in 1 point. Includes batteries, brusher solution and instructions. CALIBRACIÓN: 1413 μS/cm - 1382 ppm - 1500 ppm.