Works great in Labs, Classrooms or for Home Eperiements!
Demonstrate that sound does not travel in a vaccuum
Comes complete with Bell Jar
7.5 in. (190mm) x 11 in. (280mm) Diameter x Height
Bell requires 2 D batteries (not included)

Physics School Lab Equipment Suppliers in India 

Ltekonline are the manufacturers of Vacuum Bell Jar Electromagnetic Lab used to demonstrate engineering principles in Engineering Colleges, Engineering Schools and Physics Lab Experiments for Engineering Teaching Lab in Universities