There are a number of ways to detect, locate and pinpoint leaks and bursts in any water network. From leaks on small pipes in residential properties to leaks on water mains being surveyed by water utilities, we have a full range of leak detection tools to help you accurately find the source of your water loss.


Correlux C3-HL

Modern ground microphone and C-3 HL correlator in one.

Correlux C-3 HL completes the successful Hydrolux range. In addition to DSA technology (double-segment analysis) from the HL-5000, it also features a pitch function. It allows the user to convert low-frequency leak noises into more audible frequency ranges with the simple press of a button making the analysis of potential leak noises easier and more reliable.

With the option to add PT-3 power transmitters or the MS-3 digital multisensors, you can expand the Correlux C-3 HL simply and cost-efficiently into a powerful correlator system. The corresponding functions are already integrated into the Correlux C-3 HL, making the system "correlation ready".

Features such as an operating time of 16 hours and the protection class IP65 top off the package offered by the C-3 HL.


HL 50 BT

Hand-held leak locator with integrated sensor and Bluetooth headphone

Thanks to its particularly ergonomic shape the HL 50- BT is a single hand operated instrument. Two operation buttons and a thumb - that's all you need to use the HL 50-BT. In the standard version, the HL 50-BT offers an integrated sensor and Bluetooth headphone. There are no irritating connection cables. The HL 50-BT therefore offers optimal mobility and is highly suitable for listening to valve spindles, hydrants and fittings in buildings.

A large LCD display shows the measured sound level simultaneously in numerical form and as a bar graph. In addition, the set frequency filter is displayed. When a measurement has been completed, the previous measured sound level is indicated on the bar graph. For great flexibility and professional use, three optional external microphones are available.


Hydrolux 5000

Devices for acoustic water leak location with DSA technology

Special features:

  • See and hear leaks with DSA technology
  • High audio quality
  • Non-tiring work
  • Line location mode
  • Improved leak identification with frequency analysis


Hydrolux HL 7000 - Electro-acoustic leak detection with ground microphone, sensor rod and tracer gas

Special features:

  • Completely wireless thanks to Bluetooth®
  • Intuitive operation with clear touch colour display
  • Always ready to use due to powerful lithium-ion rechargeable batteries
  • Integrated GPS receiver
  • Environmental/extraneous noise reduction
  • Frequency analysis
  • Optional: Connection of a tracer gas sensor

C3 Series

Special features:

  • Easy to use with touch display
  • Online and offline correlation
  • Long operating time and inductive sensor charging
  • Pinpoint location using multi-sensors or ground microphone
  • Perfect for plastic pipes and pipelines
  • Multi-correlation without pipe parameter input

Sebalog Corr - The multipoint correlator

  • Programmable sensors for day/night measurement
  • Correlate up to 8 sensors simultaneously
  • Analysis via laptop
  • GPS receiver / Smartphone-App for determining coordinates
  • Pinpointing function
  • Real-time measurements

User video Sebalog Corr of SebaKMT


GOK A10 - Traceable leak detection rod

  • Pipe tracing and leak detection on plastic pipes
  • High sensitivity and selectivity through leak noise registration in the pipe
  • No influence from general outside interference
  • Can be used without shutting off supply

The location of leaks on house services or pool pipework is often made difficult when the route is unknown or in poor acoustic conditions. Frequently leak detection is impossible even with modern cross correlation equipment because there is no stop valve for the house service. Likewise, leak detection on long PE pipe runs cannot be carried out when there is no detectable signal at any of the house service terminations.

The location of leaks on house services or pool pipework is often made difficult when the route is unknown or in poor acoustic conditions. Frequently leak detection is impossible even with modern cross correlation equipment because there is no stop valve for the house service. Likewise, leak detection on long PE pipe runs cannot be carried out when there is no detectable signal at any of the house service terminations.

The GOK A-10 is introduced into the pipe via an appropriate blocking valve. This is achieved by exposing the pipe and fitting the special blocking valve. The sensor (pig) is smaller than the aperture of the fitting and can be pushed into it; there is not usually any need for further installation work.


Undetected leakage can cost thousands of dollars before being discovered, usually by increases in water bills. We can provide services which act as an "insurance policy" against this.

  • Smart metering - permanent, automatic leakage alarms.
  • Mini-logging - a one-time, low cost alternative.
  • Tailored solutions for commercial, industrial, and residential consumers.

Our Clients


WaterGroup works with some of Australia's largest private and public entities. See some of our clients below.