Used to measure the acidity or alkalinity of a solution in various applications. Commonly employed in aquariums to monitor water quality for fish and plants. Utilized in laboratories for quick pH assessments during experiments. Essential in agriculture to test soil pH for optimal crop growth. Applied in the food industry to ensure product quality and safety. Helpful in medical settings for checking bodily fluids like urine. Used in educational settings for teaching basic chemistry concepts. Ideal for home use in testing drinking water or pool water. Convenient for environmental monitoring of rivers and lakes.