10 IN 1 Tester Qualità Acqua PH/TDS/Penna Test Multifunzione per Piscina Acquario
S.G specific gravity of seawater: 1.000-1.222. TDS: 0-200000ppm. If the test result is out of range, the value of the PH tester will be displayed in red. Application: Widely used in drinking water, swimming pool, fish tank, aquarium.