Acoustic Detection
Listen for the leak.
Use acoustic sensing to locate leak noise through the AQUA-K9 platform.
Professional leak detection without being limited to one detection method.
Everything you need to get familiar with the AQUA-K9.
The AQUA-K9 combines Acoustic Detection and Tracer Gas Detection in one professional field system. The AQUA-K9 is suitable for indoor, outdoor, shallow, deep-buried, and tracer gas leak detection.
This kit includes a range of specialist sensors, each designed for a different environment. From indoor floors and confined areas to outdoor surfaces, buried pipelines, and more difficult jobs requiring tracer gas, the AQUA-K9 gives the operator the flexibility to adapt to the conditions on site.
Leak sounds and sensor feedback are processed by the Control Unit and displayed on the screen in real time through waveform analysis and numerical values. At the same time, sound is transmitted to the headphones, allowing the operator to both hear and analyse the signal while comparing test points. This helps reduce guesswork, improves pinpointing accuracy, and minimises unnecessary digging.
For more difficult jobs where acoustic conditions may not be ideal, the AQUA-K9 also includes tracer gas detection capability, allowing escaping gas concentrations to be detected and used to further narrow down the leak location.
The AQUA-K9 works by detecting the vibration and sound created when pressurised water escapes from a pipe. Using a range of specialist acoustic sensors, the unit captures leak signals through floors, walls, outdoor surfaces, soil, and other environments where a leak may be present.
These signals are then processed by the Control Unit, where they are shown visually through live waveforms and numerical values while also being transmitted to the headphones. This gives the operator both an audible and visual way to compare signal strength and identify the most likely leak location.
As the sensor moves closer to the leak, the signal generally becomes clearer and stronger, helping the operator narrow down the burst location more efficiently.
For more challenging jobs, the AQUA-K9 also features a Gas Sensor, which can detect escaping gas at the surface and provide an additional method of locating the leak when acoustic conditions are less favourable.
This combination of multiple sensor options and real-time signal analysis makes the AQUA-K9 a highly capable solution for professionals who need flexibility, accuracy, and confidence before breaking ground.
Meet the AQUA-K9, our professional leak detection platform combining acoustic and tracer gas detection in one field-ready system. Discover the K9 equipment, detection modes and the versatility it brings to professional leak detection.
Learn how to set up and operate the AQUA-K9, select the appropriate detection method and work with the system in the field. This guide walks through the key controls and functions for both acoustic and tracer gas leak detection.
Coming soon.

Choose the detection method that suits the leak — without changing platforms.
Acoustic Detection
Use acoustic sensing to locate leak noise through the AQUA-K9 platform.
Tracer Gas Detection
Switch to tracer gas detection when acoustic conditions make pinpointing the leak difficult.
A complete detection platform designed to give professionals more flexibility, clearer information and confidence in the field.
Compare leak signals using live waveform analysis, numerical feedback and headphone audio.
Move between acoustic leak detection and tracer gas detection using the same AQUA-K9 platform.
Fine-tune gain and volume across 10 levels each, with frequency filtering for changing acoustic conditions.
Configure the AQUA-K9 for indoor, outdoor and buried-pipeline work, with dedicated sensor options for different surfaces and detection depths.
Practical guidance covering setup, sensor selection and AQUA-K9 detection workflows.
Rugged equipment, organised accessories and protective transport for professional use.
Professional capability in one integrated leak detection system. Detection depth varies by sensor and field conditions.
2-in-1
Acoustic + Tracer Gas
Up to 8 hours
Working time
7-inch LCD
Display
5 years
Warranty
Lifetime
Aqua support
Up to 8 m
Tracer gas detection depth
Explore the control unit, sensors and accessories that make up the complete AQUA-K9 field kit.
For acoustic detection on outdoor hard and soft ground, supporting buried-pipeline applications at depths up to 3 m, depending on field conditions.
Designed for deeper outdoor acoustic detection on hard or soft ground, supporting buried-pipeline applications at depths up to 6 m, depending on field conditions.
Compact high-contact acoustic sensor for walls, fittings, narrow gaps and confined indoor areas where precise contact is required.
Acoustic contact sensor for general indoor and floor-surface leak detection where stable surface contact is required.
Tracer Gas Detection for locating escaping gas from pressurised pipelines, with detection capability up to 8 m depending on field conditions.
Extends direct-contact acoustic testing to fittings, valves and ground applications using compatible probes and rods.
Central AQUA-K9 interface with a 7-inch LCD for live waveform analysis, numerical signal feedback, detection modes and recorded field data.
Closed-back monitoring headphones for listening to acoustic leak signals and comparing changes between test points.
Provides sound collection plus convenient gain and volume adjustment while operating connected acoustic sensors.
Organised protective storage for the AQUA-K9 control unit, sensors, probes and accessories during transport and field work.
For acoustic detection on outdoor hard and soft ground, supporting buried-pipeline applications at depths up to 3 m, depending on field conditions.
Designed for deeper outdoor acoustic detection on hard or soft ground, supporting buried-pipeline applications at depths up to 6 m, depending on field conditions.
Compact high-contact acoustic sensor for walls, fittings, narrow gaps and confined indoor areas where precise contact is required.
Acoustic contact sensor for general indoor and floor-surface leak detection where stable surface contact is required.
Tracer Gas Detection for locating escaping gas from pressurised pipelines, with detection capability up to 8 m depending on field conditions.
Extends direct-contact acoustic testing to fittings, valves and ground applications using compatible probes and rods.
Central AQUA-K9 interface with a 7-inch LCD for live waveform analysis, numerical signal feedback, detection modes and recorded field data.
Closed-back monitoring headphones for listening to acoustic leak signals and comparing changes between test points.
Provides sound collection plus convenient gain and volume adjustment while operating connected acoustic sensors.
Organised protective storage for the AQUA-K9 control unit, sensors, probes and accessories during transport and field work.
Key system, acoustic-processing and operating specifications for the AQUA-K9 platform.
Detection depth varies by sensor, field conditions and application. Depth figures are sensor-specific and should not be interpreted as a universal AQUA-K9 detection depth.
Professional equipment deserves professional support, from first setup through years of field use.
The AQUA-K9 is backed by a 5-Year Warranty for long-term confidence in your equipment investment.
Practical guidance is available to help operators understand system setup, sensor selection, acoustic detection and tracer gas workflows.
Access ongoing product guidance and technical support from Aqua throughout the life of your AQUA-K9 system.
Professional servicing and repair support is available should your AQUA-K9 equipment require inspection, maintenance or technical attention.
Yes. The AQUA-K9 combines acoustic leak detection and tracer gas detection within one professional platform, allowing the operator to select the method suited to the application.
The AQUA-K9 provides up to 8 hours of working time, depending on operating conditions and use.
Detection depth varies by sensor and field conditions. Medium Outdoor Floor Sensor: up to 3 m. Large Outdoor Floor Sensor: up to 6 m. Tracer Gas Detection: up to 8 m. These are sensor-specific capabilities, not guaranteed or universal detection depths.
Yes. The AQUA-K9 supports different sensor configurations for indoor surfaces, walls, outdoor ground applications and buried pipelines.
Practical training and onboarding guidance are available to help operators understand AQUA-K9 setup, sensor selection and detection workflows.
The AQUA-K9 is backed by a 5-Year Warranty and Lifetime Aqua Support.
Choose the AQUA-K9 for professional acoustic and tracer gas leak detection in one field-ready system.