Tektronix DMM4020
5½-digit DMM

Key Performance Specifications
  • 5.5 Digit Resolution
  • Basic VDC Accuracy of up to 0.015% (1 yr.)
  • 200 mV to 1000 V Voltage Range, with up to 1 μV Resolution
  • 200 μA to 10 A Current Range, with up to 1 nA Resolution
  • 200 Ω to 100 MΩ Range, with up to 1 mΩ Resolution
  • CAT I 1000 V, CAT II 600 V

Tektronix DMM4020 5½-digit DMM

Key Performance Specifications
  • 5.5 Digit Resolution
  • Basic VDC Accuracy of up to 0.015% (1 yr.)
  • 200 mV to 1000 V Voltage Range, with up to 1 μV Resolution
  • 200 μA to 10 A Current Range, with up to 1 nA Resolution
  • 200 Ω to 100 MΩ Range, with up to 1 mΩ Resolution
  • CAT I 1000 V, CAT II 600 V
Available Functions and Features
  • Volts, Ohms, and Amps Measurements
  • True RMS (AC, AC + DC) Measurements
  • Diode and Continuity Testing
  • Frequency Measurements
  • 2×4 Ohms 4-wire Measurement Technique
  • Dedicated DC Leakage Current Measurements
  • Six Dedicated Buttons for Fast Access to Instrument Setups
  • Limit Compare Mode for Pass/Fail Testing
  • Front 2×4 Measurement Inputs
  • RS-232 on Rear Panel for Quick PC Connectivity
  • Includes USB to RS-232 Interface Adapter Cable
  • Includes National Instrument’s LabVIEW SignalExpress™ TE Limited Edition for Connecting Your Bench
3-year Warranty

Measurements with the Push of a Button

As the circuits in embedded system designs become more sophisticated, you must measure a multitude of different parameters to validate your design. The Tektronix DMM4020 5.5 digit bench multimeter offers a broad range of functions in one easy-to-use instrument.

Typical multimeter measurements – volts, ohms, and amps – are made with a basic VDC accuracy of up to 0.015%, ensuring you have the performance you need for your design. You can also use the DMM4020 to measure frequency, and to perform continuity and diode tests. This allows you to replace your counter, continuity tester, and DMM with one versatile instrument, saving bench space and cost.

Measure Nanoampere Signals

Measuring standby current in today’s energy-efficient designs requires looking at very low currents, often in the microamp or nanoamp range. Using a traditional multimeter for this measurement can lead to inaccurate results since they typically employ the shunt resistance technique for measuring current.

The DMM4020 offers an improved method for measuring low currents. By using a current-to-voltage op amp technique, the DMM4020 can make current measurements with 1 nA of resolution and with minimal loading affect on the circuit under test, giving results that reflect real-world operation of the device.

Designed to Make Your Work Easier

The DMM4020 multimeter is designed with the ease of use and familiar operation you expect from Tektronix.

Intuitive Operation

Dedicated front-panel buttons provide fast access to frequently used functions and parameters, reducing setup time. You no longer need to search through software menus to find the function you need.

Setup Buttons for Your Common Measurements

With six setup buttons on the front panel, you can save the settings for your most common measurements. Simply set up the meter for a measurement, then press shift followed by a setup button to save the measurement settings. Now each time you perform that measurement, you simply press the appropriate setup key.

Dual Display

With the unique dual display, you can measure two different parameters of the same signal from one test connection.

Limit Compare

Limit compare mode on the DMM4020.

The limit compare mode provides pass/fail indicators to quickly show if a test passes or fails to help eliminate mistakes, especially for results that are close to the limit.

Simple and Accurate 4-wire Measurements

Patented split terminal jacks for the 2×4 ohms function allow you to perform 4-wire measurements using only two leads instead of four. Special test lead accessories are available to enable you to establish the connection. You get excellent resolution and accuracy plus the convenience and ease of using a single pair of leads.

Easy Connectivity to Your PC

The RS-232 port on the back panel can be used to connect to your PC. A USB to RS-232 interface adapter cable is included standard with the DMM4020 for connecting to your PC’s USB port.

Connect Your Bench for Intelligent Debug

SignalExpress acquiring data from Tektronix DMM4020 and DPO3052.

SignalExpress used to export DMM4020 data into Excel.

Easily capture, save, and analyze measurement results from your multimeter with the special Tektronix Edition of National Instrument’s LabVIEW SignalExpress™ software. Every DMM4020 multimeter ships with a free copy of the Limited Edition version of SignalExpress for basic instrument control, data logging, and analysis. The optional Professional Edition offers over 200 built-in functions that provide additional signal processing, advanced analysis, sweeping, limit testing, and user-defined step capabilities.

SignalExpress supports the range of Tektronix bench instruments*1, enabling you to connect your entire test bench. You can then access the feature-rich tools packed into each instrument from one intuitive software interface. This allows you to automate complex measurements requiring multiple instruments, log data for an extended period of time, time correlate data from multiple instruments, and easily capture and analyze your results, all from your PC. Only Tektronix offers a connected test bench of intelligent instruments to simplify and speed debug of your complex design.

Performance You Can Count On

In addition to industry-leading service and support, every DMM4020 multimeter comes backed with a three-year standard warranty.

*1 NI LabVIEW SignalExpress supports the following Tektronix instruments: MSO/DPO4000/3000/2000 Series oscilloscopes, TDS3000C/2000B/1000B Series oscilloscopes, AFG3000 Series arbitrary/function generators, DMM4050/4040/4020 Series digital multimeters.

Tektronix DMM4020 5½-digit DMM

Tektronix DMM4020 Datasheet

Tektronix DMM4020 5½-digit DMM

Ordering Information


Model Description
DMM4020 5.5 Digit Multimeter


DMM4020 Includes: Meter, TL710 Test Leads, Line Cord, Statement of Cal Practices (Order option D1 for traceable calibration certificate and data report), Safety and Installation Instructions including Warranty Statement, CD-ROM with User Manual (English, French, Italian, German, Spanish, Simplified Chinese, Traditional Chinese, Korean, Russian, Japanese) and Connectivity Information, RS-232 to USB Adapter Cable, National Instruments LabVIEW SignalExpress™ Tektronix Edition, Limited Edition Software.


Please specify power plug when ordering.


Instrument Options

Power Plug Options

Option Description
Opt. A0 North America
Opt. A1 Universal Euro
Opt. A2 United Kingdom
Opt. A3 Australia
Opt. A5 Switzerland
Opt. A6 Japan
Opt. A10 China
Opt. A11 India
Opt. A12 Brazil
Opt. E1 Euro and UK power cords

Service Options*6

Option Description
Opt. CA1 Provides a single calibration event or coverage for the designated calibration interval, whichever comes first
Opt. D1 Provides traceable calibration certificate and data report
Opt. R5 Repair Service 5 Years (including warranty)

*6 Test Leads and accessories are not covered by the DMM warranty and Service Offerings. Refer to the datasheet of each Test Lead and accessory model for its unique warranty and calibration terms.

Recommended Accessories and Software

Accessory Description
Calibration Manual 077-0365-xx
196-3520-xx Premium Test Leads (replacement/spare for TL710)
TL705 2×4 Wire Ohm 1000 V Precision Test Lead
TL725 2×4 Wire Ohm SMD Test Tweezers
ACD4000 Soft Transit Case
HCTEK4321 Hard Carrying Case
RMU2U Rackmount Shelf Kit for 1 or 2 Units
013-0369-xx Calibration Fixture 4-terminal short
196-3520-00 TL710 Premium Test Lead
SIGEXPTE NI LabVIEW SignalExpress Tektronix Edition Software – Full Version