High Tech pH Meter is a professional grade digital pH testing instrument that accurately measures the acidity or alkalinity of fish pond water, soil and other aquatic solutions with high precision and reliability. With automatic temperature compensation, a wide measurement range of 0 to 14 pH and an accuracy of 0.01 pH units, this high-tech pH meter gives Nigerian fish farmers, agronomists and water quality managers the precise water chemistry data they need to maintain optimal conditions for fish health and productivity.