Gay Lussac - hollow-sphere with nose

For investigating the relationship between the pressure and temperature of a gas
at constant volume, to quantitatively determine the thermal expansion of gases and the absolute zero point (Gay-Lussac's law) with a data acquisition system;
Metal hollow sphere with hose connection
Stainless steel sphere: D=60 mm
Hose connection: D=5 mm
Mass: approx. 185 g