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PRUFTECHNIK AIMIL Condition Monitoring Pvt. Ltd.
6th Floor, Mayfair Atrium
Opposite, Delhi Public School
Near. Kalali – Vadsar Ring Road, Vadodara
390012 Gujarat
NDT Technologies (P) Limited
Plot No. W-198, TTC Industrial Area,
MIDC Kopar Khairane
400 709 Navi Mumbai


The ultrasonic testing device for leak detection

SONOCHEK ultrasound leak detection testing device

Leak detection in air and gas pressure pipes and vacuum systems

High-performance leak testing with large bandwidth of 20-100 kHz

Watch the video

Electrical inspection

Including steam trap and electrical partial discharge

Automatic leak evaluation

Leak classification and quantification of the total amount of loss

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New Fluke 3563 Analysis Vibration Sensor

The next generation in wireless vibration monitoring is here

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Capture even small leakages and save big costs

  • Large frequency bandwidth: 20-100 kHz

  • Leak analysis, evaluation and instant reporting

  • Airborne and structure-borne sensors available

  • Optional PC-software for analysis of ultrasound phenomena

  • Optional ultrasound emitter for air tightness check

  • SONOCHEK by PRUFTECHNIK on modern concrete background
  • Ultrasound leak detection with SONOCHEK by PRUFTECHNIK
  • Leak detection with SONOCHEK and airborne sensor by PRUFTECHNIK
  • SONOCHEK and airborne sensor DBS10 by PRUFTECHNIK


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Leak detection in the age of digitalization

SONOCHEK is a digital ultrasonic testing device to detect inaudible waves and frequencies in the air or in a metal machine frame. It is primarily used to detect leaks in any industrial air and gas pressure pipes and vacuum systems. Leaks of compressed air and gas systems in particular can be very costly because more energy needs to be produced to compensate for the loss.

Its detecting range reaches from 20 up to 100 kHz. These frequencies are inaudible to human ears, but SONOCHEK can detect them and make them audible and visible, while specifying the leak and evaluating the total amount of loss, all of which can be combined in a full report. An integrated camera and microphone enable the engineer to comment on his findings and refine the final report.

SONOCHEK comes with two apps for the detection and analysis of leaks and other anomalies:

  • SONOLEVEL: Pipe leak detection, electrical inspection, steam trap inspection, machine condition monitoring

  • SONOLEAK: Automatic leak analysis and evaluation of the amount of loss caused by the leakage according to five different rating levels.

High-performance airborne and structure-borne sensors and accessories are available in various product configurations. For package information, please contact us.

  • Airborne sound sensor DBS10 with 3 different horns: Find and evaluate leaks in pipes and at windows, doors, etc. Detect electrical partial discharge and insulation damage

  • Structure-borne and temperature sensor DBS20 with magnet adapter and 150 mm waveguide (optional): Monitoring of ultrasound emitted by rotating machine parts e.g. bearings, monitoring of lubrication states, functional check of condensate drains and valves

  • Parabolic long-range sensor DBS30 (optional): Leak detection from a distance of up to 25 meters

  • Ultrasound emitter DBT10 (optional): Air tightness checks on windows, doors and containers. Also used in shipbuilding and aircraft construction, road and rail vehicles. The intensity of the signal can be adjusted depending on the environmental sound level.

  • Silicon-free

Watch our video for ultra sound testing with SONOCHEK

Ultrasound leak detection with

What is new?

This upgrade contains:

  • SONOLEVEL App Version 1.3.2

  • SONOLEAK App Version 1.3.2

  • SONOCHEK Core Version 1.3.1

  • SOFTWARE Manager Version 1.3.2

Note: Please refer to the SONOCHEK PDF manual on your device chapter 3.9 on how to install the update.

What is New?

  • Personalized amplitudes in spectrograms with free colour scale

  • Import pictures via gallery

  • New .mp3 format for voice memos


  • Selection of the unit system for temperature data: metric or imperial (C° or °F)

  • Adjustment of sampling rate (4ms to 128ms)

  • New button for resetting Lmin and Lmax value


  • New leak assessment algorithm for even larger leakages

  • Editable rating ranges (leak classification limits)

  • Colored icons for rating class instead of numbers in leak list

Short instructions:

  • Copy the .apk files to the SONOCHEK folder on your device

  • Start the software manager on your SONOCHEK

  • Tap the Refresh icons next to the Apps

  • Select ‘all’ and ‘Install’

  • Done

Please back up your measurement files before installation.

Need an update?


The SONOLEVEL DATAVIEWER enables analysts to save time by identifying defects at first sight through the clear visualization of data in level graphs and spectrograms showing ultrasound phenomena such as the status of steam traps or the type of partial electrical discharge. Users can also easily replay recordings and compare reports e.g. of identical bearings.

The DATAVIEWER software can be easily installed on a Windows-PC or tablet (min. requirement Windows 7) for on-site evaluation. Export to CSV format is fully supported for data archiving and trending.

The DATAVIEWER software package comes in a box including a USB memory stick with full installation files and instructions.