An advanced multipoint correlation system for locating leaks in buried pipes of any material over long distances.

EnigmahyQ logo over white



This advanced multipoint correlation system has the ability to monitor your entire water network, regardless of pipe material or diameter. The increased distance between fittings requires fewer loggers to be deployed, significantly reducing operational costs.
Features & Benefits At A Glance
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Highly sensitive hydrophone sensor


Advanced logging and correlating


Multi-point correlation at up to 8 points


Powerful 24 bit data processing and analysis

Finds and records leaks at night

Enigma-hyQ loggers are deployed during normal working hours at multiple insertion points along the pipe. Enigma-hyQ gives an optimum performance by recording the leak sound at night – when background acoustic noise is lowest and water pressure is usually highest.

Image shows city at night from the sky
Consistently finds difficult leaks

The EnigmaHyQ has a proven track record of finding leaks that competing products cannot find. It provides the optimum in correlation technologies available.

Hydrophone sensor

This advanced sensor, developed by the military, enables the Enigma-hyQ to cover the whole network whatever the pipe diameter or material. Its sensitivity means it can detect leaks over long distances of up to 5 km.

Hydrophone sensor of the EnigmaHYQ

Sensor - Sensitivity


Sensor - Frequency range

1- 2400 Hz

Sensor - Attachment

1” BSP connection + pipe adaptors

Sampling - Rate

4860 Hz

Sampling - Resolution


Sampling - Number of epochs

1, 2, or 3

Sampling - Epoch duration

60 seconds

Sampling - Max total recording time

180 seconds

Memory - Data Store

32 Mb static RAM

Communications - Type


Communications - Rate

2.5 Mbits/sec

Power Supply - Type

Dual lithium cells

Power Supply - Replaceable

At factory or service centre

Power Supply - Operating life

>5 years (when standard programming used)

Physical - Dimensions

104mm (high) x 59mm (diameter)

Physical - Material


Physical - Waterproof rating

Submersible to IP68

Operating Temperature

-10 to +60 deg C

PC Comms - Type


PC Comms - Rate

2.5 Mbits/sec

PC Comms - Data saved into case

One run (8 correlations)

Power supply - Type

User replaceable alkaline 4 cell pack

Physical - Dimensions (logger case)

8 logger: 410 x 325 x 172 mm

Physical - Dimensions (logger case)

3 logger: 270 x 246 x 174 mm


Ruggedised high impact plastic

Waterproof rating


Operating Temperature

-10 to +60 deg C

Operating systems

Windows XP Professional / 7/ 8

Data storage

XML and 32-bit WAV files


All enhancements by free-issued PC software
Download Specification Sheet
Download Brochure
Ovarro Enigma-hyQ United Utilities Trunk Main Trial
Arezzo Leakage Detection With EnigmaHYQ

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