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Ultrasonic Air Leak Detector

CTRL Systems are the experts in ultrasound analysis since 1989, CTRL Systems offers comprehensive maintenance and reliability solutions for aviation, industrial maintenance, military, and power.

From subsea Naval platforms to the International Space Station, CTRL’s technology has been applied to some of the most unique maintenance and reliability issues on the planet.

Ultrasound analysis detects high frequency (40 kHz) sound from mechanical, electrical,

and fluid systems and converts it into real-time audio recordings and digital data that can be used to trend changes in operating condition and predict equipment failure before it occurs.


In 2001, NASA chose CTRL technology for use aboard the International Space Station (ISS).

Preliminary testing to space-readiness in 6 months.

The UL101 was chosen based on four main criteria:

  • Performance (highest quality signal-to-noise ratio, low power consumption)\

  • Ease of operation (as noted by the astronauts)

  • Small size (lightweight, handheld sensor)

  • Price-to-performance ratio

On mission aboard the ISS since 2001.

Manifested on all manned NASA shuttle missions between 2002 and 2011.

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