Decade Dial type, with 6 decade (two decade having 4 ratio arms 1, 10, 100 and 1000 ohms and decade resistance units, total resistance 11110 ohms). Coils of constantan wire double silk covered are wound non-inductively. It is fitted with two enclosed tapping keys for battery and galvanometer. Accuracy + 0.01% of unit coils.

Above is available with coils made of MANGANIN WIRE at extra cost.