Irwin Charles Law. A clear simple way of demonstrating that the volume of a fixed mass of gas is proportional to its absolute temperature. It comprises a Jolly's apparatus on an anodised stand. A scale is marked in mm. Spring clips secure an air reservoir and adjustment is made using a vertical clamping rod. Comes complete with a leveling tube and Jolly air thermometer. Supplied with oil bead and ready to use.
Thermometer -10 - 100°C. Height 33.5cm x width 40cm x depth 1.5cm. Supplied individually and also available as a pack of 10 in a Gratnells Tray