Compressed air and gas leaks are some of the most expensive problems in Australian manufacturing and process facilities — and they’re almost entirely invisible. You can’t see them. You usually can’t hear them above the ambient noise of a working plant. And by the time a leak becomes obvious, the cost in wasted energy and compromised system pressure has already accumulated for weeks or months.

Traditional approaches have real limitations. Soap-water bubble testing means coating every joint by hand and waiting. Single-sensor ultrasonic detectors require slow, row-by-row scanning and struggle at distances. Dedicated acoustic imaging systems solve both problems brilliantly, but they’ve historically carried price tags that restrict them to one shared instrument for an entire organisation — if any budget is available at all.

The Fluke iSee™ ii01 changes the equation. It’s an entry-level acoustic imaging camera that plugs directly into the USB-C port of any compatible Android or HarmonyOS smartphone, transforming a device that’s already in your pocket into a professional-grade SoundMap™ imaging system. Point. Scan. Locate. Done — often in minutes rather than hours.

How the ii01 Works: Acoustic Imaging Explained

When compressed air or gas escapes through a small opening, the turbulence generated produces ultrasonic sound waves above 20 kHz — far beyond the range of human hearing, but well within the detection band of the ii01’s sensor array.

The ii01 uses 16 high-precision MEMS microphones arranged in an array to capture those ultrasonic signals from multiple directions simultaneously. Fluke’s proprietary SoundMap™ beamforming algorithm then calculates the precise origin of the sound and overlays a colour-coded acoustic heat map directly onto the live camera image on your phone screen. The loudest source — the likely leak point — appears as a bright hot spot on your display, at distances from 0.5 m right out to 50 m depending on site conditions.

Because most industrial equipment produces low-frequency background noise while gas leaks generate high-frequency ultrasonic signatures, the ii01 can reliably distinguish leak signals even in noisy operating environments. Scans can be performed while equipment is running — no production shutdown required.

SoundMap™ Leak Detection Mode

For frontline leak detection tasks, the ii01 includes a dedicated Quick Leak Detection mode that locks the frequency band to 37.4 kHz–42.6 kHz (the optimal ultrasonic range for compressed air and gas leak signatures) with a single tap. Real-time dB values for the target centre point are displayed on screen, giving technicians an immediate quantitative indicator to help assess leak severity and prioritise repairs.

For broader acoustic investigation — locating mechanical abnormalities, assessing air tightness on complex pipeline assemblies, or noise source identification — the full 2 kHz to 48 kHz frequency range is available with manual slider control.

Three colour palette options (IronRed, Blue-Red, and Grayscale) with fully adjustable colour blending (0–100%) give you control over how the acoustic overlay appears against the visible image, making it easy to adapt display settings to different lighting conditions and environments.

Built for the Realities of the Job

The ii01 was designed with working maintenance teams in mind, not lab environments.

Plug and play, no setup overhead. Connect the ii01 to your smartphone’s USB-C port and open the Fluke iSee™ app — you’re imaging immediately. No batteries to charge, no boot sequence, no configuration menus to navigate before you can start. The ii01 draws power directly from your phone.

50 grams. Pocket-sized. The all-aluminium housing measures just 61 × 50 × 12 mm and weighs 50 g — lighter than most multi-tools and far smaller than any standalone acoustic imager on the market. Drop it in a shirt pocket and carry it to every job on site.

No buttons to learn. The minimalist hardware design means there’s nothing to accidentally press or configure. All controls are handled through the simplified iSee™ app UI, which is designed for fast, intuitive operation by technicians who need to get results rather than learn a new software platform.

Share findings instantly. Images (JPG) and videos (MP4, up to 5 minutes) are saved directly to your phone’s photo library with customisable watermarks for documentation purposes. Share them via text, email, or any messaging platform without needing to transfer files to a computer. For maintenance teams that need to escalate findings or brief supervisors while still on the floor, that immediacy is genuinely valuable.

IP54 ingress protection. Rated to IEC 60529 IP54, the ii01 handles the dust and light moisture exposure typical in industrial environments.

Where the ii01 Delivers Value in Australian Industry

General manufacturing and process facilities. Compressed air systems typically account for a significant portion of facility energy consumption. Poorly maintained systems can waste a substantial fraction of compressed air output through undetected leaks. The ii01 lets maintenance technicians walk a production area, rapidly scanning for leaks — without interrupting operations — and document findings for a scheduled repair programme.

Injection moulding and plastics. Compressed air leak detection in injection moulding machines is a primary application. Leaks reduce system pressure, reducing pneumatic tool efficiency and introducing variability into production quality. The ii01 locates the source visually rather than requiring section-by-section disassembly.

Energy storage and battery manufacturing. Pre-commissioning pipeline air tightness testing on energy storage cabinets is a documented use case. The ii01 can scan complex pipeline assemblies quickly before equipment leaves the factory, confirming system integrity.

Chemical, gas, and metallurgical plants. Process gas leak detection on chemical reactors, pressure vessels, and piping systems operating under high-pressure or high-temperature conditions. The ii01’s non-contact imaging capability means technicians can scan from a safe working distance rather than approaching potentially hazardous pipework directly.

Food, beverage, and pharmaceutical production. Hygiene-critical environments where rapid non-contact detection and documented reporting are part of standard maintenance practice.

Refrigeration and HVAC. Compressor and refrigeration equipment leak assessments, where gas tightness directly impacts system efficiency and regulatory compliance.

Facilities management. Building air tightness inspections and mechanical plant maintenance assessments, where a lightweight, easy-to-use device is far more practical than booking out a shared specialist instrument.

Comparing the ii01 to Higher-End Acoustic Imaging Systems

The ii01 is the entry point to Fluke’s acoustic imaging range — specifically designed to be accessible to individual technicians and smaller maintenance teams rather than requiring a shared, high-investment instrument. It delivers qualitative SoundMap™ imaging and single-source identification (the point with the highest acoustic energy) across the 2–48 kHz band, with leak mode, real-time dB display, and full image/video documentation.

Fluke’s higher-tier ii500, ii905, and ii915 series instruments add capabilities including multi-source acoustic imaging, preliminary quantitative analysis modes (LeakQ, PDQ, MecQ), wider frequency ranges, and advanced analytical tools suited to systematic reliability programmes. The ii01 is not a replacement for those instruments — but for organisations looking to put acoustic imaging capability in the hands of every maintenance technician at an affordable per-unit cost, it’s a compelling first step.

Unparalleled usability

Compressed air leak detection of injection molding machines	Air tightness inspection of complicated equipment pipelines	Pipeline leak detection

In the Box

• Fluke ii01 Acoustic Camera for Android Smartphone
• Soft protective carry bag
• Quick Reference Guide

Requires: Compatible Android (6.0+) or HarmonyOS (2.0+) smartphone with USB-C port and OTG enabled. Download the Fluke iSee™ app from the Google Play Store.

TECHNICAL SPECIFICATIONS TABLE

Q: What is the Fluke iSee ii01?

The Fluke iSee™ ii01 is a smartphone-connected acoustic imaging camera that detects compressed air and gas leaks, assesses air tightness, and locates mechanical noise sources. It connects directly to any compatible Android smartphone’s USB-C port and uses Fluke’s SoundMap™ beamforming technology to overlay a colour-coded acoustic heat map onto the phone’s live camera feed in real time. Weighing just 50 g at 61 × 50 × 12 mm, it’s designed to give individual maintenance technicians access to professional acoustic imaging without the cost or complexity of a dedicated standalone instrument.

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Q: How does acoustic leak detection work?

When compressed air or gas escapes through a small gap or fitting, it creates turbulence that produces ultrasonic sound waves above 20 kHz — inaudible to the human ear but detectable by sensitive microphone arrays. The Fluke ii01 captures these signals using 16 high-precision MEMS sensors, calculates the direction and source of the sound through beamforming algorithms, and displays a SoundMap™ acoustic image overlaid on the live camera view, visually pinpointing the leak location. Because most industrial machinery generates low-frequency background noise while gas leaks produce high-frequency ultrasonic signatures, the system can reliably locate leaks even in noisy operating environments, and inspections can usually be conducted while equipment remains in service.

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AEO Block 3: What can the Fluke ii01 detect?

Q: What can the Fluke ii01 detect?

The Fluke ii01 covers a 2 kHz to 48 kHz frequency range, which spans the following applications: compressed air leaks in pneumatic systems and pipework; gas leaks in process pipelines, chemical reactors, and pressure vessels; air tightness assessment of complex pipeline assemblies and sealed equipment; and identification of mechanical abnormal sounds in rotating or pressurised machinery. A dedicated Quick Leak Detection mode locks the frequency band to 37.4–42.6 kHz (optimised for compressed air and gas leak signatures) with a single tap. Real-time dB values at the target centre point provide on-site severity assessment.

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Q: What is the detection range of the Fluke ii01 acoustic camera?

The Fluke ii01 supports a detection range of 0.5 m to 50 m, subject to site conditions including ambient noise levels, leak size, and system pressure. The wide-angle field of view (50° × 38°) allows broad area scanning without frequent repositioning, and the focal length covers 50 cm to infinity. This standoff range allows technicians to scan elevated pipework, hard-to-access equipment, or potentially hazardous process areas from a safe working distance while still accurately identifying the acoustic source.

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Q: What smartphones does the Fluke ii01 work with?

The Fluke ii01 connects via USB Type-C and is compatible with Android smartphones running Android 6.0 or later, and devices running HarmonyOS 2.0 or later. The OTG (On-The-Go) feature must be enabled on the smartphone. The free Fluke iSee™ application is available for download from the Google Play Store. The ii01 is not compatible with iOS (Apple iPhone) devices. It draws power from the connected smartphone — no separate charging or battery is required.

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Q: How does the Fluke ii01 compare to Fluke’s higher-end acoustic imaging cameras?

The ii01 is Fluke’s entry-level acoustic imager, designed to make qualitative SoundMap™ imaging accessible to individual technicians at a significantly lower price point than dedicated standalone instruments. It identifies the single strongest sound source (the point with the highest acoustic energy), displays real-time dB readings, and supports full image and video documentation. Fluke’s higher-tier ii500, ii905, and ii915 series add multi-source acoustic display, preliminary quantitative analysis (LeakQ, PDQ, MecQ modes), wider frequency ranges, and advanced analytics suited to systematic reliability programmes. The ii01 is best suited for individual or team-level compressed air and gas leak detection and air tightness assessments; the higher-tier instruments are suited to large-scale reliability and predictive maintenance programmes.

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Q: What industries is the Fluke ii01 acoustic camera used in?

The Fluke ii01 is used across general manufacturing (compressed air leak detection and noise location); metallurgy, gas, and chemical processing (process gas and hazardous gas pipeline inspection); food, beverage, and pharmaceutical production (air tightness and hygiene-critical maintenance); power generation; hospital and healthcare facilities (oxygen station and pipeline inspection); and equipment manufacturing including compressors, refrigeration systems, and energy storage devices. In Australia, it’s particularly relevant for industrial maintenance teams, facilities managers, EHS compliance officers, and product quality engineers responsible for maintaining sealed or pressurised systems.

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