RS Series resistance substitution box – VIDEO

The IET Labs RS series resistance substitution box is the most commonly used decade box on the market today. The RS series is not only easier to use, but it is also priced lower than most its competition.

IET RS resistance substitution box

The easy of use and 0.1% accuracy makes the IET Labs RS box ideal for daily verification of test equipment before measurements, troubleshooting in the field or on the factory floor.


  • Accurate 0.1% to 1%
  • Wide range from 0.01Ω - 100M and Omega (depending on model)
  • Broad choice of standard and optional models with many powerful features
  • Compact, convenient, and rugged