Item # 74340
This 4-wavelength Colorimeter is great for Beer's law experiments, determining the concentration of unknown solutions, or studying changes in concentration vs. time. The new design includes a one-button automatic calibration feature. Fifteen 3.5 mL cuvettes are included. A package of 100 replacement cuvettes (with 20 lids) is available. For use with LabQuest, LabPro, Go! Link, EasyLink, CBL 2™, and CBL.