Contains strips of copper, iron, aluminium and brass fixed to a wooden ring and meeting at the centre, with the outer ends of the strips formed into small cups.

We are manufacturers and suppliers of the Conductivity Apparatus, 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.