Vacuum Bell Jar Demo

Our quality bell jar demo is a great tool to discover how sound requires a medium to travel, and other experiments. Includes a glass bell jar, vacuum base plate, gasket, hose, and battery-operated ringer electric bell.

Glass Bell Jar dimensions: 6.5" diameter, 9-3/4" tall (inside dia 6"-1/4, inside height 8").

Base dimensions: 8" diameter, 1-1/2" height.

Technical Specifications: Vacuum Pressure for Bell Jar: <= -0.06MPa

Electrical Specification: 3V DC

Temperature: 14 to 104‚°F (-10 to 40‚°C)

Humidity: 85% Max

Requires 2 AA batteries and a vacuum pump (ASC-6080-00 or 6076-11), not included.