All the components of an electric bell are mounted on a large panel, with all wiring visible and all parts of large size, on a vertical stand to show the connections. Operates on 4–6 V DC.

We are manufacturers and suppliers of the Bell Demonstration Model, serving Algeria, Argentina, Australia, Bahrain, Bangladesh, Belgium, Bhutan, Brazil, Cambodia, Cuba, Cyprus, Denmark, Ecuador, Egypt, Ethiopia, Finland, France, Georgia, Germany, Ghana, Hungary, Iceland, Italy, Japan, Jordan, Kenya, Kuwait, Malaysia, the Philippines, Tanzania and Uganda.