If you get the "Sorry, the file cannot be displayed. There seems to be a technical issue ..." error when trying to view an image, a workaround is to click on the cog icon in the upper right side of the media viewer, and then select "Disable Media Viewer". We are aware of the problem and are looking for a solution.


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Tektronix DM504
autoranging digital multimeter
Tektronix DM504

Compatible with TM500 system

Produced from (?) to (?)

Manuals – Specifications – Links – Pictures

The Tektronix DM504 is a autoranging digital multimeter plug-in for the TM500 system.


  • 4-1/2 Digit Autoranging DMM
  • True RMS AC Functions
  • Modes: DC Volts, AC Volts, DC mA, AC mA, Ohms, and Temperature
  • 0.07% DC Voltage Accuracy
  • Diode Test and Audible Continuity (Beeper) Modes