Resistance Standard

SR102/103/104 Series
 Highest accuracy (1 ppm/yr) and stability (±0.5 ppm/yr typical) of any resistance standard
 Lowest temperature coefficients (< 0.1 ppm/ºC)
 Available in 3 models: 100Ω, 1000 Ω, 10,000Ω.
 Has remained the foremost resistance standard, with no equivalent, for over 35 years
 5 Year Warranty Included

HARSLX 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.

esi SR1010 Resistance Transfer Standard
 Resistance Transfer Standards available in the following values 1 Ω, 10 Ω, 100 Ω, 1 kΩ, 10 kΩ, 100 kΩ
 Initial Accuracy... ± 20PPM of nominal value matched within 10PPM
 Transfer Accuracy... ± (1PPM + 0.1uΩ at parallel value) for 100:1
 Transfer Accuracy... ± (1PPM + 1uΩ at series parallel value) for 10:1
 Long Term Accuracy... ± 50PPM of nominal value
 Calibration Accuracy... ± 10PPM

esi SR1030 Series Oil Immersed Transfer Standard
 Resistance Values of 1 Ω  100 kΩ
 Initial Accuracy... ± 20 PPM of nominal value matched within 10 PPM
 Transfer Accuracy... ± (1 PPM + 0.1uΩ at parallel value) for 100:1
 Long Term Accuracy... ± 50 PPM of nominal value
 Calibration Accuracy... ± 10 PPM

esi SR1050 Series 1M & 10 M Resistance Transfer Standard
 Resistance Values 1 MΩ & 10 MΩ
 Initial Accuracy... ± 25 or 30 ppm of nominal value matched within 10 ppm
 Transfer Accuracy... ± 2 ppm (Typical Shortterm Repeatability)
 Calibration Accuracy... ± 10 or 15 ppm

esi SR1 Calibration Resistor
 New Design, With Improved Specifications
 Versatile working Calibration Resistor
 Laboratory standard of high accuracy and stability
 Adjusted to within 20 ppm of nominal
 50 ppm longterm accuracy for most values