Test time: 60 s Advantages: Anti-VC interference ability Test points: Residual chlorine, pH, total alkali, hardness, iron, copper, lead, nitrate, nitrite, bromine, total chlorine, chromium, fluorine, cyanuric acid. Application range: Suitable for drinking water, aquariums, swimming pools and spas, industrial water, ponds, thermal water, bathtub water, pesticide water, residual water from dishwashing disinfectants.