Digital Multimeter

Feature-rich Tools for Precision Measurements

With 6.5 digit resolution, the Tektronix DMM4050 and DMM4040 multimeters enable you to measure volts, ohms and amps with a basic V DC accuracy of up to 0.0024%. Integrated frequency, period, capacitance and temperature measurements mean you can make a wide range of measurements with one instrument. You can also monitor and record measurements over time or environmental ranges and view statistical values to see how your circuit's performance is changing. And, dedicated front-panel buttons provide fast access to frequently used functions and parameters, reducing set-up time. The DMM4050/4040 multimeters provide the feature-rich tools and precision you need for your most demanding measurements. 
Key Features
  • 6.5 Digit Resolution
  • Basic VDC Accuracy of up to 0.0024% (1 yr.)
  • 100 mV to 1000 V Voltage Range, with up to 100 nV Resolution
  • 100 μA to 10 A Current Range, with up to 100 pA Resolution
  • 10  to 1 G Range, with up to 10 μ Resolution
  • CAT I 1000 V, CAT II 600 V

  • Volts, Ohms, and Amps Measurements
  • True RMS (AC, AC + DC) Measurements
  • Diode and Continuity Testing
  • Frequency and Period Measurements
  • Temperature and Capacitance Measurements (DMM4050)
  • 2×4 Ohms 4-wire Measurement Technique
  • TrendPlot Paperless Data Recorder Mode
  • Measurement Statistics
  • Histogram Mode

  • Front and Rear 2×4 Measurement Inputs
  • USB Host Port on Front Panel for Easy Storage of Measurement Data and Instrument Settings
  • RS-232, LAN, and GPIB Ports on Rear Panel for Quick PC Connectivity
  • Includes USB to RS-232 Interface Adapter Cable
  • Includes National Instruments LabVIEW SignalExpress TE Limited Edition for Connecting Your Bench

Quick Selector Guide
Model Digit Resolution Measurements VDC Accuracy
DMM4040 6.5 Volts, Amps, Ohms, Frequency, Period, Continuity, Diode Test 0.0035% Reading + 0.0005% Range
DMM4050 6.5 Volts, Amps, Ohms, Frequency, Period, Continuity, Diode Test, Capacitance, Temperature 0.0024% Reading + 0.0005% Range