Profound Vibra

A Rugged, Vibration Monitoring Solution

The Profound Vibra is an all purpose vibration logger designed with construction and demolition site work in mind.

The Vibra uses a geophone to directly measure Peak Particle Velocity (PPV) and can log results in each x, y and z axis for velocity and acceleration.

"...internal memory can store up to 37800 sets of results..."

The Profound Vibra's measurement period is user selectable from 1 second to 15 minutes and the unit's internal memory can store up to 37800 sets of results plus vibration waveforms of up to 9 of the highest noise events per hour. Using the provided three Alkaline D cell batteries, the Profound Vibra's battery can last up to 4 weeks.


The Vibra+ has all the features of the Vibra with the addition of the following:

  • Integrated GPRS/internet options enabling alerts and data e-mails
  • Enables FFT analysis of waveforms downloaded from the Vibra+
  • The method of determination of the dominant frequency is user-selectable (zero-crossing or FFT)
  • Enables displacement measurement in addition to velocity and acceleration
  • Trace Recorder – the Vibra+ can provide output continuous triaxial velocity levels at a sampling frequency of 1024 Hz to a PC via the USB port.

Items Included with Purchase

  • 1x Profound Vibra Vibration Logger
  • 1x Tri-Axis Geophone
  • 3x Alkaline D cell batteries
  • 1x Flat-head Screwdriver
  • 1x 17mm Spanner
  • 1x Vibra software and license CD
  • 2x Geophone mounting brackets

Optional Extras

Vibra Logging Kit

The Profound Vibra or Vibra+ can be purchased along with a logging kit made by ARL that houses the Vibra and all of it's accessories in a rugged weather and water resistant Explorer Case with a custom foam insert.

Wireless Alarm Beacon

The Wireless Alarm Beacon is a rechargeable battery powered portable alarm that allows the vibra to visibly signal an alarm level exceedence. The Wireless Alarm Beacon is capable of recieving alarm signals from any Vibra system within range, or it can programmed to only respond to alarm signal of one or more specifically linked Vibra systems.

The Vibra with logging kit is available for hire from ARL Click Here to enquire!

Applicable Standards


  • DIN 45669-1:2010-09 Accuracy Class 1
  • DIN 4150-3
  • Protection Rating - IP65 (According to DIN 40 050/IEC 529)


  • DIN 45669-1:2010-09 Accuracy Class 1
  • DIN 4150-2
  • DIN 4150-3
  • Protection Rating - IP65 (According to DIN 40 050/IEC 529)