The bottle of 50 Industrial Test Systems eXact 486814 Micro phosphate (PO4) test strips are designed for use with eXact series photometers to test for the presence of phosphate (PO4) in water and have a detection range of 0.03 to 4.00 ppm. The bottle includes 50 test strips.

Industrial Test Systems manufactures water quality testing equipment for water treatment, food and beverage, pool and spa, educational, and medical industries. The company, founded in 1989, is headquartered in Rock Hill, SC.