These units employs high stability metal film resistance element having superior characteristics to traditional wire wound coils. Its equally suitable for AC or DC use.
The individual decade are series connected in two dials, three dials and four dials.
We use high stability 1 percent carbon metal film resistance.
Also available with Constantan or Manganin wound coil resistance for higher accuracy.

Physics School Lab Equipment Suppliers in India 

Ltekonline are the manufacturers of Decade Resistance Box Dial Type Electronic and Electric Lab used to demonstrate engineering principles in Engineering Colleges, Engineering Schools and Physics Lab Experiments for Engineering Teaching Lab in Universities