The Commtest vbSeries range of instruments includes portable vibration analyzers, data collectors, and balancers.


The Commtest vbSeries range of instruments (vb5, vb6, vb7, vb8, vbBalancer, vbBalancer+) comprises portable vibration analyzers, data collectors, and balancers. This tiered instrument range varies in features and price, enabling you to select the model with the set of features you require.

If you choose one of the data collector or analyzer vbSeries models, you also have the option of adding Flex features to further customize your instrument to suit your requirements. Regardless of the model you choose, you have the added benefit of our rock-solid 5 year warranty.

Key Standard Features

vbSeries instruments are built to robust professional standards, making them the first choice for several leading companies around the world. The instruments have several standard features in common:

  • Enhanced ergonomics for walkaround data collection
  • True left- and right-handed operation
  • Multi-channel en route recordings - Data collectors and analyzers only
  • 1 GB memory - Virtually unlimited spectra and waveform storage
  • DC-coupled sensor support
  • 12 800 lines of resolution
  • 40 kHz Fmax
  • Single, dual, or four-channel recordings
  • CSA C1D2 Hazardous Locations certification
  • USB host port for data transfer to external USB memory
  • Lightweight, rugged IP65-rated cases
  • Cable test mode
  • Option to add Flex features
  • Five year instrument warranty
  • Free software updates for the original registered owner

Some vbSeries instruments have more standard features than others. Click the links provided to learn more about each model:

An updated version of the firmware that runs on the vbSeries instruments periodically becomes available as part of an Ascent software release. Refer to the Upgrade Guide to learn how to apply an updated firmware version.


vbSeries Feature Comparison

vbSeries Reference Guide

vbSeries FAQs

vbSeries Technical Specifications

vbSeries Case Study - Dynamic Test Systems

vbSeries Certificates - C1D2, IP65, CE, Drop Test

vbSeries Battery - BATT0206 Material Data Safety Sheet & Certification