AlkaZone Accurate Check pH Test Strips For Water Description: Range: 2.010.0 Disclaimer These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease. AlkaZone Accurate Check pH Test Strips For Water Directions Dip pH reagent strip into water sample for 12 seconds. Remove and shake strip once, briskly, to remove excess water. After 20 seconds, match color of strip to color chart provided with test strips. Warnings Do not touch test pads of strip. Do not remove desiccant. Remove only needful strips for immediate use. Replace cap immediately and tightly after use. Do not put test pad of strip on your tongue directly to test your saliva. Juice from Apple, Purple Carrot, Sweet Potato, Butternut Squash, Beet, Pear, Strawberry, Raspberry and Tomato Juice from Concentrates (Filtered Water and Juice Concentrates), Filtered Water, Natural Flavors, Citric Acid, Vegetable Color, Ascorbic Acid (Vitamin C) Vitamin A Palmitate, Vitamin E Acetate.