All in one unit for studying pressure, temperature and volume of a gas and to demonstrate the relationship between them.

• Simplistic design
• Digital temperature display with 0.1 °C resolution
• Measures pressure from –1000 to 3000 hPa in 50hPa intervals

This unit consists of a 29 mm diameter graduated cylinder with a piston and a screw valve. The cylinder acts upon a manometer through a narrow passage.