PH Meter Tester, 0.01 Resolution Digital Automatic Water PH Meters Hydroponics
Seawater PH is 7.9 to 8.5. Normal urine PH is 5.5 to 5.7. The total pH scale ranges from 1-14, with 7 considered to be neutral. A pH ＜ 7 is said to be acidic and solutions with a pH ＞7 are basic or alkaline.