Provides? satisfactory ?performance ?and constant? EMF over? continuous? use.?Comprising a?heavy-gauge?copper outer?vessel with an?internal?perforated?shelf for copper sulphate crystals, a porous pot, and an amalgamated zinc rod fitted with a wooden supporting cap. The zinc rod and copper vessel are each provided with a 4mm socket terminals. The cell has an EMF of 1.1V approx., with a working capacity of about 0.85L. Sizes of the components (height × diameter) are

Copper vessel – 130×90mm Porous pot – 150×50mm