LaMotte 2086 ColorQ 2x PRO 7 Kit The Waterproof Bluetooth® ColorQ® 2x PRO 7 handheld photometer provides fast, accurate digital readings for Free Chlorine (DPD), Total Chlorine (DPD), Bromine (DPD), pH, Alkalinity, Calcium Hardness, and Cyanuric Acid. It uses economical liquid reagents for 144 tests per factor (chlorine/bromine and pH) and TesTabs® tablets for Alkalinity, Hardness, and Stabilizer (100 tablets each). The ColorQ® 2x removes the guesswork of color matching and comes with reagents, trilingual instructions (English, Spanish, French), and a durable carrying case for easy field testing. Install Guide Ops Man Specifications: Brand: LaMotte Application: Pool, Spa Shipping Dimensions: 9 x 2 x 2.75 inch Commercial, Residential, or Professional: Professional Weight: 0.5 pounds Operating Temperature Max: 122 degrees Fahrenheit Operating Temperature Min: 23 degrees Fahrenheit Test Range: 0-1999 µS (Conductivity), 0-9990 ppm (TDS), 0-9990 ppm (Salinity), 32-149 deg F (Temperature) Testing Parameter: Salt/TDS/Temperature/EC UPC Code: 637395445484