
When leaks develop as a result of failed seals or internal components, they emit an ultrasonic sound wave that is above the natural range of human hearing. The WA-EUS-720 Series Ultrasonic Leak Detectors convert this ultrasonic sound by an electronic process called ‘heterodyning’ that accurately converts the ultrasounds sensed by the instrument into the range where users can hear the audible signal through a headphone. The high frequency, short wave characteristic of ultrasound enables users to accurately pinpoint the location of a leak or a particular sound in a machine.
WA-EUS- 720 ultrasonic leak detectors allow maintenance personnel to confirm a diagnosis on the spot by being able to clearly discriminate among various equipment sounds. The basic advantages of WA-EUS-720 ultrasonic leak detectors are that they can easily locate leaks, provide advanced warning of impending mechanical failure and can be used in loud, noisy environments.
The large LCD display bar graph displays the leaking intensity and converts the ultrasound frequencies to human audible range. When working in unpressurised systems, or if the pressure is not sufficient enough to detect or verify a leak with the Receiver alone, use the Transmitter to generate the ultrasonic signal (included with the WA-EUS-730 Kit). In extremely noisy environments where there is strong ultrasonic noise generated by running machinery or equipment, the Receiver’s filter function can filter out up to three main noise frequencies which would otherwise hide the noise of the leak.
In some situations, there might be strong ultrasonic noise generated by running machinery, motion sensors or other equipment. This noise will cause the Receiver to read the maximum signal strength of this noise interference on the display regardless of the sensitivity settings and make it unusable for detecting leaks. The Filter function was designed for these situations. Simply press the Filter button and the Receiver will automatically detect and filter out up to three main noise frequencies.
While scanning a target area with the Receiver’s ultrasonic microphone the displayed bar graph will indicate proximity to the source of the leak. Plug the headphones into the Receiver to audibly hear the leak and verify its source. For example, air leaks will produce more of a hissing sound while electric discharge manifests in a ticking sound.
Automotive manufacturing plants rely heavily on compressed air for pneumatic tools, actuators, assembly equipment, and automated production systems. The WA-EUS-720 compressed air leak detector helps maintenance teams quickly locate leaks around air lines, fittings, valves, and pneumatic equipment while the plant is operating. Regular ultrasonic leak detection can help reduce compressed air losses, lower energy consumption, and maintain reliable production performance.
Textile manufacturing facilities use compressed air extensively across spinning, weaving, processing, and pneumatic equipment. Small leaks in compressed air lines, valves, fittings, and machinery can increase compressor workload and operating costs over time. The WA-EUS-720 enables maintenance teams to pinpoint ultrasonic leak sources accurately, helping textile plants reduce wasted compressed air, improve system efficiency, and support continuous production.

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Ultrasonic leak detectors like the WA-EUS-720 detect high-frequency sound waves generated by air escaping through leaks. These sounds are inaudible to humans but easily picked up by the sensor.
Studies show that 20-30% of compressed air is lost through leaks in a typical plant. Fixing leaks with regular detection using the WA-EUS-720 can reduce compressor energy costs by 15-25%.
Best practice recommends quarterly compressed air leak surveys. Regular detection and repair programs using ultrasonic detectors ensure ongoing energy savings and system efficiency.
Selection depends on pipe size, pressure, flow range and how the data needs to reach you. Tell us your application and we will shortlist the models that fit and send the datasheets.
Prefer to talk? Call +91 90477 78715. Working out whether it pays? Try the savings and ROI calculator or the leak cost calculator.
# 12 Sri Venkatalakshmi Nagar, Singanallur,
Coimbatore – 641005 India.
WiseAir Technologies India LLP is part of the Systel Asia group — specialists in compressed air management and smart monitoring solutions across Asia since 2002.
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Selection depends on pipe size, pressure, flow range and how the data needs to reach you. Tell us your application and we will shortlist the models that fit and send the datasheets.
Prefer to talk? Call +91 90477 78715. Working out whether it pays? Try the savings and ROI calculator or the leak cost calculator.