Resistance Decade Boxes

Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): CN
Product Details

RS PRO R-100 Resistance Decade Box

Introducing the RS PRO R-100 Resistance Decade Box, designed to measure the resistance of electric current through an electrical conductor. This device offers 7 decades of resistance, ranging from 1 to 11MΩ (Ohms) and is suitable for a wide range of product design and prototyping applications or calibration and troubleshooting tasks. This decade box is powered by 0.3W resistors and offers a heavy-duty, durable design for use in the field, making it an ideal resistance test and measurement box to achieve quick and precise results.

Features and Benefits:

  • This RS PRO decade box has been specifically designed to measure the resistance of an electrical current using 7-decade ranges of resistance with accuracy and reliability

  • The heavy-duty construction of the box makes the device ultra-durable and ideal for working in the field or harsh environments

  • It offers a separate grounding terminal and the three binding posts permit isolated substitutions

  • The resistance range of the box is from 1 to 111Ω in 1Ω increments

  • Powered by 0.3W resistors, this decade resistance box ideal for a wide range of applications


This device offers 7 decades of resistance ranges 1 to over 11MΩ (in 1Ω steps). Slide switches allow easy addition and subtraction of resistance values. Binding posts offer simple and secure connections.

Can this unit be calibrated?

Yes, the unit can be calibrated to RSCAL or ISOCAL standards and can be found here:

193-8945 RSCAL
193-8943 ISOCAL


RS PRO is our own brand range and brings you a wide range of high-quality, great value products offering you more choice. Trusted by engineers all over the world, every part of every RS PRO product has been rigorously tested against demanding industry standards; they’re only given the RS PRO seal of approval if we’re confident of their exceptional quality, which means you can be confident too.

Attribute Value
Decade Box Type Resistance
Best Maximum Resistance Accuracy 1%
Power Rating 0.3W
Dimensions 14 x 13.1 x 3cm
Maximum Operating Temperature +500°C
Weight 295g
Length 140mm
Height 30mm
Width 131mm
Minimum Operating Temperature 0°C
32 In stock for delivery within 1 working days
Price Each
kr 482,63
(exc. VAT)
kr 603,29
(inc. VAT)
Per unit
1 +
kr 482,63