Special pH test strips featuring both the pH indicator and reference color scale on the same strip, enabling measurement without the need for an external color chart, providing precise and error-free pH determination in liquids via a single color change method, ensuring rapid results without comparison requirements, equipped with a hydrophobic barrier to prevent capillary rise and keep the handle end dry, and supplied in an easy-to-use polystyrene box containing 200 strips for protection against external factors.
