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100 Pcs PH test strips - Know your health at all times In the normal metabolic process, the human body constantly produces acidic and alkaline substances. The value of PH will reflect the condition of the body, you can tell if you're in good health without having to pay for expensive medical tests. All the PH strips are made of high quality material to ensure the high-accuracy survey, different PH levels correspond to different colors, you can know the PH in 1s. What can be tested by the PH strips? For Human Body - Urine, sweat, saliva. For Food: Milk, lemon juice, fruits, drinking water, orange juice, tea, and more. For Others: Soil, plants, soap, battery, aquarium, shampoo, and more. Specification: Quantity: 100 pcs PH Value: 0-14 Size: 3.1"x0.25" Package Include: 100 x PH Strips dropper 2 pcs PH of common substances: Lead-acid batteries less than 1/ Gastric Acid 1.5 - 3.5 / Milk 6.8 Drinking Water 6.5 - 8.5/ Fruit Juice 2 - 5.5/ Beer 4.5 Urine 4.6 - 8/ Vinegar 3.1/ Saliva 6.2 - 7.