Cropico RBB6-B Decade Box
 
Combining high quality, long life and permanence of calibration, the RBB Series offers an unbeatable selection of models.
The reliability is built in as we use our own designed and manufactured switches combined with high quality wire wound resistors. All units are supplied complete with certificate of conformity and all measurements are of course traceable to International Standards. Special models are available for temperature (Pt100) and insulation resistance simulation.