100PCS PH Tester Paper Chlorine Dip Pool Test Strips Hot Tub SPA Swimming Bottle
Test range for total alkalinity: 0 ~ 240 ppm. 💦This pool ph test kit has anti-VC interference ability，The accuracy is 96%. Residual Chlorine Range: 0 - 10. Total chlorine test range: 0 ~ 10 ppm. 6 in 1 swimming pool test paper：.