Our product assortment is geared exclusively toward commercial customers.
Our product assortment is geared exclusively toward commercial customers.

RTW TouchMonitor TM3 Primus

Ultra compact Audio and Loudness Meter
RRP €880.00 * -15%
brutto €888.93
€747.00 *

Prices plus VAT plus shipping costs

Delivery time approx. 6-10 working days

Available alternatives.


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RTW's TM3-Primus is a highly compact and innovative, easy-to-use product, giving music, voice, and multimedia producers in professional as well as non-commercial environments everything they need. Therefore, the loudness and audio metering devices include frequently used standard instruments and parameters in supreme quality to meet the demands of a wide variety of applications.

Beside the use as a standalone desktop unit including analog and digital audio interfaces, as well as USB audio, TM3-Primus with firmware version 1-02 or higher also provides an innovative USB hybrid mode. Metering will then be performed right from the DAW via RTW USB Connect PlugIn and the TM3-Primus will process and visualize the information without the need for additional wiring or extensive signal routing, and without dropping the standard audio interface.

New firmware for TM3-Primus:

Firmware Download at the RTW members area (Manuals & Software)

Version 1-02 supports in connection with new RTW USB Connect software the USB hybrid function for direct access of audio signals from a DAW.

The RTW USB Connect software enables a direct audio connection between a TM3-Primus as a plug-in within a DAW environment. It also offers the remote control within the DAW for start/stop/reset to the TM3-Primus. With this software it is no longer necessary to define the TM3-Primus as output device. The software can also be used as a stand-alone remote control for start/stop/reset to the TM3-Primus.

Key Features:

  • User interface:
    The graphical user interface used in TM3-Primus units is controlled simply by using your finger. Instruments can be selected and will be combined for an optimized reading. All commonly used parameters are set, just a few need to be adjusted by the user to meet individual requirements.
  • Compact unit with full feature set for multifunctional audio measurements (analog, digital, USB audio)
  • Table-top unit with display, USB connecting cable, and external USB mains adapter
  • 4.3“ capacitive touch screen (272 x 480 pixel)
  • Optimized screen layout with selectable instruments
  • Analog 2-channel stereo input via unbal. RCA, adjustable from –22 dBu (61 mV) to +24 dBu (12.28 V)
  • Digital 2-channel stereo in- and output via S/PDIF (RCA)
  • Micro-USB connector for digital audio inputs (stereo, 5.1) and USB power supply (USB mains adapter or computer)
  • PPM/TruePeak meter with analog and digital scales
  • Moving Coil instruments with PPM, VU, and BBC modes
  • Loudness measurements acc. to EBU R128, ITU-R BS.1770-3/1771-1, ATSC A/85, ARIB, OP-59, AGCOM, or CALM Act
  • Summing Loudness bargraph, M, S, or I value selectable
  • Numerical displays
  • LRA instrument (Loudness Range) with MagicLRA mode
  • Loudness Chart instrument (course over time)
  • 2-channel Audio Vectorscope
  • Stereo Correlator (phase meter)
  • RTA
  • Monitoring instrument with onscreen level fader
  • Downmix of USB Surround signals, output via S/PDIF Out connector
  • Keyboard
  • USB hybrid function: Using RTW USB Connect software allows simultaneous monitoring and metering, e. g. right from a DAW

Consisting of:


  • Easy-to-use graphical interface, high-grade capacitive 4.3" touch screen, power supply via USB 2.0 Micro-B connector (USB mains adapter or computer)

Audio Interface:

  • Analog Stereo input (channels L and R) via 2 x RCA (unbalanced), with potentiometer adjustable from 61 mV to 12.28 V
  • Digital Stereo input via RCA (S/PDIF, unbalanced, 75 ohm)
  • Digital Stereo output via RCA (S/PDIF, unbalanced)
  • Digital audio signals (Stereo, 5.1) via USB 2.0 Micro-B connector

Software Package:

  • TP/PPM Bargraph
  • Moving Coil instruments
  • Loudness Sum bargraph
  • Numerical display
  • Loudness Chart instrument, Loudness Range instrument (LRA)
  • Audio Vectorscope
  • Real Time Analyzer
  • Correlator (phase meter)
  • Monitoring instrument
  • Keyboard
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