These pH Alkaline Test Strips for pH 7-14 pH detect weak to strong alkaline solutions with 0.5 pH resolution.
They are easy to use and a color reference chart is printed on each bottle.
These pH test strips feature triple pads on each measuring stick. This is to ensure the best contrast & color comparison under different lighting conditions. Depending on the pH you are measuring any two of the pads will change while the 3rd doesn't.
After dipping the strip, compare the 3 colors to find the closest match.
