IET Labs 1433 Series (originally designed by GenRad) is widely acknowledged as one of the finest Decade Resistors in the world. Engineered for precision laboratory use, it combines historical excellence with modern manufacturing standards.

Construction & Accuracy:

• Superior Switch Technology: Utilizes solid silver-alloy contacts to ensure contact resistance remains low, constant, and reliable throughout the instrument’s lifespan.
• Precision Resistors: Equipped with high-quality resistors featuring a Low Temperature Coefficient, preventing value drift even under fluctuating environmental conditions.
• High Resolution: Available in configurations ranging from 3 to 11 Decades, offering resolution as fine as 1 mΩ (0.001 Ω).

Performance & Reliability:

• Exceptional Stability: Renowned for its long-term stability, maintaining specification accuracy over many years of service.
• Low Zero Resistance: Features an internal “Zero Resistance” of less than 1 mΩ per dial, which is critical for minimizing errors in low-ohm applications.
• Versatile Connectivity: Supports 2-wire, 3-wire (Shielded), and in specific models, 4-wire (Kelvin connection) to eliminate lead resistance errors.

Manufacturing Standards:

• Made in USA: 100% Manufactured in the United States.
• Certified Traceability: Includes a calibration certificate traceable to NIST (National Institute of Standards and Technology).