This 4-wavelength Vernier® Colorimeter is great for Beer's law experiments, determining the concentration of unknown solutions, or studying changes in concentration vs. time. <BR><BR>-The new design includes a one-button automatic calibration feature. <BR>-Fifteen 3.5 ml cuvettes are included. <BR>-A package of 100 replacement cuvettes (with 20 lids) is available separately.
The gas pressure sensor has enough resolution and range to work for all subject areas. Used to moniter pressure changes of a gas in chemistry and biology experiments.