ISE 2026

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DAGA 2026

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Made in Switzerland Precision Engineering

Monitor live. Predict peaks. Stay compliant.

For professional Live Sound monitoring, the Projector PRO allows the XL2 screen to be viewed on a tablet or computer connected via USB. The optional “XL View” and the “Sound Level Predictor” display extend the XL2 Projector PRO for professional live sound monitoring applications.

  • Live Display
  • Large Level View (optional)
  • Sound Level Predictor (optional)

Projector PRO Header

XL2 Screen on the Computer (free)

The Projector PRO software displays the XL2 screen in real-time via USB on the connected Windows or Mac computer. The software toolbar enables control of the XL2 with the mouse and keyboard. The background color turns from green to red according to the user-defined limits. Projector PRO offers the ability to retrieve measurement data from the XL2 without interruption to the measurement process. The entire file system of the XL2 is available while the XL2 is measuring. The complete data records of a previous day can be transferred to a local computer with drag & drop.

All Projector PRO settings can be saved in a software profile. For daily event monitoring, e.g. in a neighborhood bar monitoring project, the sound level monitoring starts automatically when the computer starts up and ends again with the shutdown. The XL2 Sound Level Meter stores the measurement data for later documentation. For precise data recording, the time of the XL2 sound level meter is automatically synchronized with the computer time. The sound level meter can then be kept in a protected place (such as a locked cupboard) – it no longer requires any keypresses.

The XL2 Projector PRO software is a free download for all registered XL2 customers. Required is a computer with Windows 7, 8, 10 or higher or Mac OS 10.8 or higher.

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XL View (optional)

The “XL View” window presents sound levels in large size on the connected computer screen. Users may select to view one, two or three sound pressure levels. Exceeding levels are presented with a pre-warning amber or alarming red color. To access the XL View, a Projector PRO Option must be installed on the XL2 Sound Level Meter.

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Sound Level Predictor (optional)

The “Sound Level Predictor” visualizes the level history of the current measurement interval and indicates the headroom for the actual measurement period or the next few minutes. Green bars confirm that the present level is well below limits. Red bars are a call to action to reduce the sound level at the mixing desk. This allows the front-of-house engineer to optimize dynamic passages of the band for maximum audience satisfaction while still remaining within the legal limits. To access the Sound Level Predictor, a Projector PRO Option must be installed on the XL2 Sound Level Meter.

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Nti Audio Xl2 Projector Pro Sound Level Predictor

How to use the Projector PRO Software

The Projector PRO Software at work

XL2 Kit for Live Sound Monitoring

  • The kit includes:

    • XL2 Sound Level Meter
    • Projector PRO Option for XL2
    • M4261 Measurement Microphone
    • ASD Cable
    • Cable Test Plug (MR-PRO)
    • Mains Power Adapter
    • Exel System Case
  • Optional as required:

    • Limit Light – visual level indication with a green, orange or red light
    • Class 2 Microphone Calibrator – for user calibration

Trusted by professionals worldwide.

    As a research laboratory invested in supporting communities through real time noise monitoring,  I am very happy to exclusively use NTi instruments. Not only are the robust, easy to use, and provide high quality data, the customer service is outstanding and their team will work with you to find the most cost effective and appropriate solutions needed for problems ranging from easy to difficult.

    User
    Erica D. Walker MSc, ScD, RGSS Assistant Professor of Epidemiology, Brown University School of Public Health
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    I’ve been using the XL2 for over 15 years for short-term and long-term measurements in all kinds of indoor and outdoor environments all across the country. The meter gets me what I want, when I need it. It’s not only the best value for acoustical measurements, it’s the best tool period. I bet my company and reputation on XL2 results and it has not let me down. You would be crazy not to consider adding NTi instruments to your toolkit.

    User
    Herb Singleton, P.E., INCE Bd. Cert., President, Cross-Spectrum Acoustics
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    We at Constructure GmbH use two XL3 sound level meters for noise monitoring during demolition work. We are very satisfied with these highly user-friendly instruments, the online monitoring in the MeasurEye Cloud, the good advice and qualified support. Factory calibrations at NTi Audio are also handled very smoothly and without complications.

    User
    Markus Rost, Managing Director, Constructure GmbH
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