LEDs and photosensor intensifier automatically select the wavelength you need, whether it’s 430, 530, 560, 580, 610 or 660nm. User-friendly interface gives you excellent data management and features a favorites menu that makes it easy to select the tests you use most. The MC500 Multiparameter Colorimeter operates with English, Spanish, French, German or Italian. Colorimeter is waterproof and resistant to acids and solvents. Touch-sensitive keypad gives you audible feedback. Unit stores up to 1000 data sets. Customize it with user-defined methods: 10 with calibration point input and 10 with polynomial input. Meter is just 8-1/4"H x 3-3/4"W x 1-3/4"D. Meter includes two glass 24mm sample cells, 16mm tube adapter, 13mm tube adapter, manual and case. Includes four AA batteries.