Features Effortless pH Testing: Fast, Accurate & Non-Bleeding – Utilize high-quality litmus pH test papers that provide immediate and precise readings without the hassle of color bleed, perfect for quick and reliable pH levels assessments Versatile Application: From Body to Laboratory – Easily measure pH in various settings - including personal health checks through urine or saliva, educational science projects, or maintaining optimal conditions in pools, aquariums, and hydroponic systems User-Friendly Design: Color-Matching Ease – Achieve clear pH readings by simply dipping the strip and comparing the resultant hue to the included color chart. A straightforward process for anyone needing quick pH value insights Bulk Pack Convenience: Abundant Supply with Organized Storage – Never run short with a generous count of 200 pH strips, smartly distributed across 4 bottles for extended shelf life and easy access in any testing environment Enhanced Sales Appeal: Crisp & Compelling Description – Crafted for clarity and highlighting the product's high demand features, appealing directly to the practical needs of buyers seeking efficiency, versatility, and value. Features: High-quality, non-bleeding litmus pH test papers for rapid and accurate pH readings, suitable for diverse uses including health, education, and water-based ecosystems. User-friendly with easy color-matching, and conveniently packaged in bulk for long-lasting supply Specification: Item Type: PH Test Strips Material: Litmus paper Detectable PH Range: 6.8~8.4 Total Hardness Range: 0-240 Test Paper Quantity: 200 Pieces Use: Suitable for detecting pH value of human body through urine and saliva; can also be used in schools, laboratories, drinking water, swimming pools, fish tanks, hydroponics, aquariums, food and so on Package List:200 x PH Test Strips4 x Storage Bottle Note:In the test process, tear off a small piece of the test page, use a glass rod, cotton swab or other incisive object to pick up a small amount of the object to be tested, drop on the test page, see the color change, and then compare the corresponding color classification on the color plate, you can know the PH value. Package List 200 x PH Test Strips 4 x Storage Bottle