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Software and Updates for Multi 350i and 3500i

Download the latest version of software for the multi-parameter handheld meters Multi 350i/3500i

Firmware Update – V2.24

Windows software for firmware update of Multiparameter handheld meter Multi 350i/3500i via Personal Computer.

Download and installation notes:

The necessary cable for connection to PC is included in the Multi 350i set.

Version history – innovations

  • V2.24: Improvement of the update function

Download ZIP archive:

MultiLab® Pilot – V5.26

Windows software package for easier configuration and control of inoLab® 740 / Level 3 active multifunction boxes and for data transfer/processing from further WTW instruments via Personal Computer.

Download and installation notes:

System Requirements:

Microsoft Windows 2000, Windows Server 2003, Windows XP, Windows Vista, Windows 7, Windows 8 or Windows 10

Version history – innovations:

  • V2.26: Solving installation problems with Windows 8 and Windows 10

Download ZIP archive:

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Product information about the WTW multi-parameter portable meters:

The WTW multi-parameter portable meters Multi 350i or Multi 3500i are devices that are no longer part of our current product lineup.

Here, you will find product information about our current multi-parameter portable meters of the series MultiLine®, MonoLine and ProfiLine.

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