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The compact ColorQ photometer displays the test results directly on the digital display. Featuring an innovative dual-optic design, the ColorQ provides reliable field tests to eliminate the need to visually determine slight color variations. Features: Only 5 drops for each liquid reagent; Trilingual instructions (English, Spanish and French); No color matching; Water-resistant housing; 5-minute auto-off function protects battery life; 6-month warranty on parts and workmanship; Kits include: ColorQ photometer; photo-diagrammatic instructions (English, Spanish, French); and reagents in a convenient carrying case. The ColorQ TesTabs PRO 11 kit's test factors include Free Chlorine, Total Chlorine, Bromine, pH, Alkalinity, Calcium Hardness, Cyanuric Acid, Iron, Copper, Biguanide, and Biguanide Shock. The kit features economical liquid reagents along with easy to use TesTabs tablets, a Saturation Index Calculator, and a pool manager handbook. The ColorQ PRO 11 and reagents are packaged in a rugged carrying case for on-site testing. The TesTabs Kit uses tablet reagents for all tests except the Biguanide test. Test ranges: Free Chlorine: 0 to 10 ppm; Total Chlorine: 0 to 10 ppm; Bromine (uses the chlorine (DPD) reagent set): 0 to 22 ppm; pH: 6.5 to 8.5; Alkalinity: 0 to 250 ppm; Calcium Hardness: 0 to 400 ppm; Cyanuric Acid: 0 to 125 ppm; Iron: 0 to 3.0 ppm; Copper: 0 to 4.0 ppm; Biguanide: 0 to 70 ppm; Biguanide Shock: 0 to 160 ppm.