This pH tester kit allows you to accurate test the pH of various substances including foodstuff, Aquarium/Water, Urine, Soil etc. Scales is as follows:- •1-3 Indicates a very high Acidic Substance •4-6 Indicates an Acidic Substance •7 Indicates Neutral •8-11 Indicates an Alkaline Substance •12-14 Indicates a very high level of Alkalinity.
eBay