IETLAB SR102/103/104 Series Stable Resistance Standard (1 ppm/yr )

(Full specifications can be found on datasheet)

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
The primary standard of National Metrology Labs throughout the world
Has remained the foremost resistance standard, with no equivalent, for over 35 years
Oil filled, hermetically sealed; units can be supplied without cases for use in oil bath
ISO/IEC-17025 Accredited Calibration Included
Alpha Beta Measurements Included

Datasheet