Bartovation pH Test Strips, pH 2-9, 50/Bag

These pH 2-9 test strips feature three pads to ensure precise testing. Each strip measures pH in 0.5 unit increments, providing results in seconds. Ideal for a wide range of acidic and alkaline solutions. When comparing against the color chart, ensure the closest match of all three pads for accuracy. Depending on the acidity, one or two pads will change color, with variations under different lighting conditions (incandescent, fluorescent, sunlight).