Lansonee pH Test Strips 1-14, 2 Pack (160 Strips) Litmus Paper Water Testing Kit for Pool, Soil, Aquarium, Spa, Drinking Water, Urine & Saliva pH Indicator

Easy to use, provides reliable highly accurate pH readings. Ideal for pH testing at home, labs or schools Economical & reliable with the pH test range 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14 The test strip size 55mm x 9.0mm / 2.20" x 0.35" There is a strong correlation between the pH of the body's internal environment and pH paper help you to maintain good healthy body by testing many usual everyday substances, including moisturized soap, lemon juice, milk, liquid detergent, moisturized soil, saliva, urine, sweat...etc 2 Books in pack. Each book contains 80 litmus paper strips.