The UL101 Air Audit Kit includes attachments for airborne ultrasound detection such as compressed air/gas leaks, vacuum leaks, and more. The UL101's sensitivity is unmatched, with the ability to find all turbulent flow leaks.

CTRL UL101 Air Audit Kit

The CTRL UL1 01 Air Audit Kit includes attachments for airborne ultrasound applications including leak detection (any type of gas), vacuum leak detection, electrical inspection, and steam leak detection. Additionally, the kit includes a single 3-inch solid probe for diagnosing steam traps and valves by detecting internal by-pass leaks.

The Air Audit Kit can be expanded to a Full Kit by purchasing the UT2000 and additional solid probes. Upgrade to the UL101 CBM Kit with an InCTRL subscription.

Leak Detection
Compressed Air For Energy Savings Leaks account for 20% to 30% of the energy usage of a compressor.

Ultrasound is not affected by wind.

Expensive Gas (Any Type)
Finding one Nitrogen leak has immediate ROI.

Steam Leaks
Improve steam system efficiency and save money.

Intrinsically Safe:
ANSI /UL 91 3-88, for DIVISION 1, CLASS I, Groups A, B, C and D, CLASS II, Groups E, F, G and CLASS III
It also complies with DIVISION 2, CLASS I, Groups A, B, C and D, CLASS II, Groups F, G, and CLASS III


Distance of Reception – up to 150 ft (50 m)
without PowerBeam 300 attachment
Threshold of Sensitivity – 0 dB SPL
Resonance Frequency – 40 kHz +/- 1 kHz
Operating Temperature –  -4° to +130° F
(-20° to +54° C)
Power Supply – standard 9 Volt battery
Battery Life – 45 continuous hours


Leak Detection (Pressurized Gases)
Leak Detection (Vacuum)
Leak Detection (Non-Pressurized)
Valve Inspection
Steam Trap / Leak Inspection
Electrical Inspection - arcing, tracking, corona discharge


Energy Savings
Quality Control
Fleet Readiness
Time Savings


GSA Contract #: GS-06F-0001 N
CTRL Cage Code: 62373