Resistance Decade Box Selection Guide -IET Labs

IET is the world's leading RLC decade box manufacturer.

With 50+ years of stability data and history, IET Labs manufactures a full line of resistance, capacitance and inductance decade boxes that will cover most any budget and application: field, calibration laboratory or automated stations.

From the world's highest precision to our cost-effective models.
1000's of models available from: 1 mΩ to 10 TΩ, 1 pF - 10,000 µF, 1 mH- 10 H.
Programmable and self-calibrating models available.

Contact us if you don’t find the decade box you need and we would be happy to custom build it IET Labs, maintains some of the finest R, L and C calibration standards in the World. Almost all of IET’s decade boxes are manufactured with pride in the USA.

THERE IS A LOT TO CHOOSE FROM ON THIS PAGE-
TO FIND THE BEST MODEL USE THE CATEGORY FILTER ON THE LEFT SIDE OF THE PAGE

1433 Series Precision Decade Resistance Box

PRS-370 Self-Adjusting Programmable Resistance Box & RTD Simulator
Resistance range: 0.1 Ω to 20 MΩ with a Resolution of 1 μΩ or 6 digits
Precision lab grade Resistor Standard with accuracy
Manual or Programmable decade resistor with IEEE interface and Labview drivers
No long term maintenance or calibration cost -with an 5 year warranty
Designed for customers who own an 8.5 digit DMM (Fluke 8508A, 8588A or Keysight 3458A)
The most revolutionary decade resistor ever!
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PRS-330 Precision Programmable Resistance Box & RTD Simulator
Resistance range: 0.1 Ω to 20 MΩ with a Resolution of 1 μΩ or 6 digits
Lab grade accuracy (70 ppm + 1 mΩ): 1.5 times better than conventional manual decade resistors
Manual or Programmable resistor with USB, Ethernet and IEEE interfaces all standard
Very low long term maintenance cost- with an 5 year warranty
About 10% lower in cost to the PRS-370
If you own 8.5 Digit DMM (Fluke 8508A, 8588A or Keysight 3458A) you should strongly consider the PRS-370.
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PRS-300 Precision Programmable Resistance Decade
Resistance Range: 0.1 Ω to 20 MΩ
Precision lab grade accuracy 70 ppm + 1 mΩ
Resolution: 1 μΩ ( 0.000 001 Ω) or 6 digits
To further improve accuracy to PRS-DMM
Programmable decade resistor with USB interface and Labview drivers
5 year warranty
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esi RS925D Resistance Decade
High accuracy - 20 ppm + 0.5 mΩ
High stability - 20 ppm + 0.5 mΩ
Resistance from 10 mΩ to 1.1 MΩ
20 μΩ resolution
Precise fixed minimum resistance
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RS Series Resistance Substitution Box
Accurate 0.1% to 1%
Wide range from 0.01 Ω - 100 MΩ (Depending on Model)
Broad choice of standard and optional models with many powerful features
Compact, convenient, and rugged
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HARS Series Resistance Decade Box
Resistance from 1 mΩ to 111 MΩ
Available in double-power version: HARS-X2
Wide choice: single through 11 decade units
High accuracy - 0.01% (100 ppm) or 0.1% depending on model
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OS-260 & OS-270 Resistance Decade Boxes / RTD Simulator
The revolutionary ohmSOURCE microprocessor controlled resistor is like nothing you have ever seen before!
US Patent 6487456
Two cost-effective models available
Accuracy's as tight as 0.01%, with resolution as good as 0.01Ω
Engineered as an ideal RTD calibrator
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GenRad 1433 Series Decade Resistor
Precision accuracy of 0.01%
Resistance range from 1 mΩ to 111.11111111 MΩ
36 models available, 3 to 11 dials
Long life switches with silver-alloy contacts
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esi / Tegam DB62 Decade Resistor
Precision accuracy of ±(0.01% + 2 mΩ)
Resistance range from 0.01 Ω to 11.1111 MΩ
4 models available, each covering six decades
High-performance solid silver-alloy contacts
Low zero resistance < 6mΩ
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HRRS Series High Resistance Decade Box
Resistance from 100 Ω to 100 GΩ
High-accuracy: up to .01%, 3 Accuracy Classes Available
Voltage up to 2000 V
Excellent TC: as low as 5 ppm/°C
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HRRS-5 kV & 10 kV Series - High Resistance Decade Box
Choose from Units with a Max Resistance of 1 GΩ, 10 GΩ, 10 GΩ, 1TΩ or 11 TΩ
Units use the most stable and accurate resistor and custom high voltage switches
Maximum Voltages of 5000 V or 10,000 V. For 2000 V, consider the standard HRRS Series
For Calibration of Meggers and Sourcing out Precision High Resistance.
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HARS-LX Series Decade Resistance Substituter Lab Standard
High accuracy - as good as 20 ppm
High stability - as good as 5 ppm/yr
Over 55 models available with resistance from 1 mΩ to 121.1 MΩ
Resolution as good 1 mΩ with a fixed decade or 20 μΩ with a rheostat.
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HPRS Series High Power Resistance Decade Box
Resistance from 1 mΩ to 10 MΩ
Power Rating : 225 W/decade, 250 W max. or higher (contact IET for custom higher power units)
Accuracy: 0.5% or 1%
Special and custom configurations available
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VRS-100 Series High Resistance Standards
Set of nine, ten or eleven resistors - 1 kΩ, 10 kΩ, 100 kΩ,1 MΩ, 10 MΩ, 100 MΩ, 1 GΩ, 10 GΩ, 100 GΩ, 1 TΩ and 10 TΩ , open circuit (Depending on model)
High Accuracy - up to 20 ppm
Standard voltage: up to 5 kV (voltages of 10 kV are available)
Excellent for calibration of Meggers
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RCS Series Resistance & Capacitance Box
Combination of resistance and capacitance decades
Accurate 0.1% to 4% (depending on model)
Capacitance range 100 pF - 100 µF
Resistance range 1 Ω - 10 MΩ
Compact, convenient, and rugged
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PRS-200 Series Programmable Resistance Decade Box
IEEE, RS232 or Ethernet Programmable Decade Resistor
Wide range and resolution: 1 mΩ to 100 MΩ
Available at accuracies of : 0.01%, 0.02%, 0.05%, 0.1%, 0.5%, and 1%
Special RTD and custom configurations
Dual / Combo rackmount models ( examples: Resistance & Capacitance or Resistance & Inductance)
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DRS-900 High Power Decade Resistor
Resistance from 1 mΩ to 1 MΩ
Standard Accuracy: (1% + 20 mΩ)
Power Rating : 225 W/decade, 250 W max. or higher
Voltage Rating: 1000 V or higher
Rack mounting standard
Special and custom configurations available
Replacement for the Clarostat 240C
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Custom_Decades
Custom Resistance Decade Boxes
Custom Resistors
IET will design a custom resistance decade to meet or exceed your requirement
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