Agilent / Keysight 34470A Digital Multimeter, 7 Digit, Truevolt DMM

The Keysight 34470A is a 7.5-digit benchtop digital multimeter engineered for precision measurement across voltage, current, resistance, frequency, and specialized functions. Leveraging Truevolt technology - a patented analog-to-digital converter architecture - the instrument eliminates measurement errors from noise and injected current while maintaining metrology-grade accuracy guaranteed to ISO/IEC 17025 standards. It delivers 16 ppm basic DC voltage accuracy and reads up to 50,000 samples per second, making it suitable for demanding production, service, and research environments.

Technical Specifications

• 7.5 digits of resolution


• 16 ppm basic DC voltage accuracy


• 50,000 readings per second maximum


• 50,000 readings standard memory; expandable to 2 million with optional module Voltage & Current Measurements


• DC Voltage: 100 mV to 1000 V


• AC Voltage RMS: 100 mV to 750 V


• DC Current: 1 µA to 10 A


• AC Current RMS: 100 µA to 10 A with true RMS via digital direct sampling; supports crest factors to 10× without additional error terms Resistance, Frequency & Specialized Functions


• 2- and 4-wire resistance: 100 Ω to 1 GΩ


• Frequency measurement: 3 Hz to 300 kHz


• Period measurement included


• Continuity and diode test (5 V capable)


• Temperature measurement: RTD/PT100, thermistors, thermocouples


• Capacitance: 1.0 nF to 100.0 µF Display & Interface


• 4.3-inch color graphical display with number, histogram, bar chart, trend chart, math, and statistics modes


• Dual-line display capability


• USB and LAN/LXI Core connectivity standard; optional GPIB available


• Digitizing mode with advanced triggering included


• Data logging and BenchVue software compatibility Physical


• Benchtop: 261.2 mm W × 303.2 mm D × 103.8 mm H


• Weight: 3.76 kg


• Full accuracy operating range: 0 °C to 55 °C

Key Features

• Auto-calibration compensates temperature drift


• Truevolt architecture balances resolution, linearity, accuracy, and speed


• 50,000 readings/second acquisition for transient capture and trend analysis


• Native LXI/USB automation eliminates external controllers


• Flexible memory expansion via optional 3446MEMU module

Typical Applications Production test and burn-in; component characterization; circuit troubleshooting; temperature monitoring via thermocouples or RTDs; frequency and period analysis; high-speed data acquisition in automated test environments.

Compatibility & Integration USB and LAN/LXI Core included. Optional GPIB interface (Option 3446GPBU) available. Direct integration with BenchVue enables multi-instrument visualization and remote monitoring. Standard test lead set (34138A) supplied.