The Keysight 34420A Nanovolt/Micro-ohm Meter is a high-resolution instrument engineered for applications requiring extreme sensitivity and precision. With 7.5-digit resolution, it provides accurate and repeatable measurements of ultra-low voltages and micro-ohm resistance, making it ideal for calibration labs, semiconductor testing, superconductivity research, and advanced electronics R&D.
Designed for stability and low-noise performance, the 34420A ensures reliable measurements even under challenging low-level signal conditions. Its fast measurement rate and flexible configuration allow users to perform four-wire resistance tests, nanovolt detection, and automated data acquisition efficiently. With USB and optional GPIB/LAN connectivity, it easily integrates into benchtop or automated test environments.
Key Features:
7.5-digit resolution for ultra-low voltage and micro-ohm measurements
Nanovolt and micro-ohm measurement capability
High stability and low-noise performance for precise results
Four-wire resistance measurement support
Fast measurement rates for efficient data acquisition
USB standard; optional GPIB/LAN for automation
Compatible Chemicals:
Not applicable – designed for electronic and low-resistance measurements only.
Included Accessories:
Test leads, four-wire resistance connections, power cord, user manual, and calibration certificate.
Compliance:
Manufactured under ISO 9001 quality systems
Supports ISO 17025 calibration standards
Benefits for Lab & Field Users:
Provides ultra-precise, traceable measurements for research and calibration
Enables low-level voltage and resistance testing in R&D and production labs
Reduces measurement uncertainty with low-noise architecture
Integrates easily into automated test systems
Reliable, high-resolution tool for advanced electrical measurements





