With 600 nm filter, software, and downloadable experiments, tabletop Vernier Flash Photolysis Spectrometer is used to demonstrate fundamental principles of chemical kinetics and photochemistry during experiments. Pressure Sensor 400, used to conduct physical and analytical chemistry experiments, measures absolute pressures from 0–400 kPa. Used to explore properties of conductivity, Platinum-Cell Conductivity Probe has 2-cell, glass-insulated platinum sensing element and epoxy body.