FlexSonic™ – For when the wind blows!

by | Apr 5, 2018 | Fixed Gas Detection, Latest News

FlexSonic Acoustic Gas Leak Detector Yellow Pipework

The FlexSonic gas leak detector adds a whole new layer of plant protection. It listens to gas leaks where others don’t.

For years traditional gas detecting technologies used to identify gas leaks have included catalytic and infrared detectors. These detectors are very effective in stable conditions but can be compromised in harsh or challenging situations. For example, a gust of wind may dispel any leaking gas and blow it away from the gas detectors.

In these conditions, by the time a gas cloud triggers an alarm if at all, it could potentially reach a highly explosive level.

The advantage that acoustic detection technology has over conventional technology is gas does not need to come into contact with the acoustic detector as it has to with fixed-point detectors. The acoustic detector responds to the source of the gas, instead of the gas itself.

FlexSonic™ Acoustic Gas Detector

The FlexSonic gas leak detector adds a whole new layer of protection. It listens for gas leaks at ultrasonic frequency. The FlexSonic patented technology provides a truly unique capability. It ‘learns’ sounds that interfere with gas leak detection and then simply ignores them dramatically improving the effectiveness of the device.

The Flexsonic acoustic gas detector utilises a high fidelity microphone to monitor for the distinct sound emitted by a pressurised gas leak, while ignoring other nuisance environmental sounds such as rotating machinery, chains, motors or fans to minimise false alarms.

FlexSonic™ Acoustic Gas Detector Benefits

FlexSonic™ is not the only acoustic gas leak detector available, yet Det-Tronic’s FlexSonic acoustic leak detector features significant advantages:

Coverage Area

A single detector can cover a relatively large area (up to 20 metre radius for 0.004 Kg/Sec leak)

Low Maintenance

Robust gas leak detector that does not need calibration

Fail Safe

Automatic Acoustic Integrity Check (AIC) verifies that the detector is functional. The detector will fault if the detector fails 3 consecutive AIC tests (adjustable)


Storage is on a removable SD card which contains alarms, events and configuration data. The distinct advantage of having continuous data storage is that can be removed and analysed.

The SD memory module can store up to 6 months of real time acoustic data as well as backup storage for the safety critical parameters maintained in onboard flash.


That data can be analysed using the enhanced software that has been developed to determine optimal placement and alarm configuration, troubleshooting, and learning out background noise that could potentially be a source of a false alarm.

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