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Keysight 3458A 8½-Digit Precision Digital Multimeter

Keysight 3458A 8½-Digit Precision Digital Multimeter

Product Description

The Keysight 3458A is a world-renowned 8½-digit precision digital multimeter, trusted by calibration labs, metrology institutes, and high-accuracy research environments. Known as the gold standard for ultra-precision measurement, the Keysight 3458A delivers exceptional long-term stability, extremely low noise, and unmatched measurement resolution, making it one of the most accurate bench multimeters ever created.
It provides superior performance in DC/AC voltage, DC/AC current, resistance, frequency, and time interval measurement, making it the ideal choice for ISO 17025 labs, R&D centers, production test benches, and national standards laboratories.

Key Features

True 8½-digit resolution for extreme accuracy

Unmatched 0.0024 ppm/°C stability

100,000 readings/sec for ultra-fast data acquisition

Gold-standard performance for calibration and metrology

Low noise, low drift, and high repeatability

Highly accurate DC/AC voltage and current measurement

Precision resistance measurement with 4-wire capability

High-speed GPIB interface for automated testing

Long-term drift stability for lab reference

Durable and reliable bench-top design

Ideal for calibration labs, R&D, and testing environments

Industry standard for inter-laboratory comparison (ILC)

Technical Specifications Table

Specification Detail
Model Keysight 3458A
Type 8½-Digit Precision Digital Multimeter
Manufacturer Keysight Technologies (formerly Agilent / HP)
Resolution 8.5 digits
Functions DC/AC Voltage, DC/AC Current, Resistance, Frequency, Time Interval
Max Reading Speed 100,000 readings/second
Voltage Range Up to 1000 V
Current Range Up to 10 A
Resistance Range 10 Ω to 1 GΩ
Stability 0.0024 ppm/°C
Interface IEEE-488 (GPIB)
Use Case Calibration labs, R&D, metrology labs
Weight ~18 lbs (≈8.2 kg)
Power 100–240V AC, 50/60 Hz


The Keysight 3458A 8½-digit digital multimeter delivers industry-leading precision, ultra-high stability, and fast measurement speed—perfect for calibration labs, metrology, and R&D environments. The Keysight 3458A Precision Digital Multimeter sets the benchmark for ultra-high accuracy and stability in calibration and metrology applications. With true 8½-digit resolution, lightning-fast measurement capability, and exceptional drift performance, it’s the most trusted instrument for ISO-17025 accredited labs and advanced R&D facilities. Capable of precise voltage, current, resistance, and frequency measurements, the 3458A provides long-term reliability and performance unmatched by other bench multimeters, making it the reference choice for national laboratories and precision manufacturing industries.

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