The resistance comprises 3 decades of 10x1, 10x10 and 10x100 Ohms, giving a total of 1100 Ohms. At the back of the apparatus are the non-inductively wound redistances. The maximum load is, for the units, 2 Amperes, for the tens, 0.8 Amperes and for the hundreds 0.2 Amperes.
The apparatus is used for resistance measurements. The decades can be used both in series and, by loosening the two connecting bars, seperately in single decades for different circuits. The handle serves as a resistance indicator.