PHY-HEAT-42 Linear Expansion Apparatus Precision Dial type

The accuracy in determination of coefficient of linear expansion of the material of a rod depends on the precision in the measurement of the expansion produced, which is provided by a dial gauge indicator, graduated 0.01mm per division. Ideal for higher grade students. The expansion rod is located in a metal tube and is heated by means of steam inlet to the tube. It requires no electrical terminals or accessories for measurement. The apparatus comes completely assembled and includes four expansion rods, one each of steel, brass, aluminum, and copper.