PH Test Strips, 2 Rolls of Test Strips, Swimming Pool pH Test Strips Indicator pH Measurement Full Range 0-14 The pH paper has a full range of pH which can measure the pH value between 0 and 14. It is easy to read and meets various testing needs. Made of high-quality litmus paper, the pH tester is sensitive and provides reliable, accurate pH results with clear color matching. To use: Take out a small pH strip, dip it into the liquid for a few seconds, then compare the color change to the printed color chart on the container. Lightweight and compact coil design makes it easy to use and carry. Each roll is 16.4 feet (5m) long, totaling 32.8 feet across two rolls. Ideal for science education, aquarium water quality, hydroponics, industrial applications, agricultural testing, and more. pH < 7 indicates acidity, pH = 7 is neutral, pH > 7 indicates alkalinity. Lower numbers indicate stronger acids; higher numbers indicate stronger bases. Water quality test: Slightly alkaline drinking water may be beneficial (pH 6.57). Cosmetic test: Low-acid cosmetics are generally suitable for skin (pH 56.5). Laundry detergent detection: Mildly alkaline detergents may reduce skin irritation (pH 78). Body test: Urinary and salivary pH levels can provide general health insights (urine pH 5.07.5, saliva pH 6.67.5). Food analysis: Monitoring food pH may help maintain dietary balance. Amniotic fluid test: pH testing may assist in detecting amniotic fluid leakage during pregnancy (pH 7.07.5). Urine dipsticks and pH paper made of high-quality litmus paper with a detection range of 014 provide accurate and reliable results. Simply cut a short section of the strip to obtain results within seconds. This universal test strip is suitable for everyday pH testing. Instructions: Step 1: Remove a test strip from the container. Step 2: Dip the strip into the liquid for 2 seconds. Step 3: Remove and compare the strip color to the chart on the container. Reliable pH measurements for swimming pools, saliva, drinking water, aquariums, hydroponics, food, soil, detergents, soap, and other liquids. Universal pH paper ideal for home, laboratory, school, and educational use in measuring water quality, urine, saliva, soil, and more. Note: Measurements are manually taken. Slight variations may occur due to lighting and screen display differences. Actual product may vary slightly in color.