
Using these Probazen test strips for pool water 3in1, you can determine the pH, concentration of free chlorine, and total alkalinity in the pool. The strips are ideal for home users.
Dip the strip into the pool water and remove it immediately. Hold the strip horizontally for 10 seconds and then compare the pH, free chlorine concentration, and total alkalinity (in this order) with the color patterns printed on the packaging.
Seal securely after use. Store at room temperature.