Megger MPAC128 Acoustic Imager
- Unleash unrivalled insight and safety in every survey
- Complete with all the essential accessories to get you started
The Megger MPAC128 Acoustic Imager is the professional’s gateway to next-generation ultrasonic imaging. Engineered for maintenance, reliability, and safety teams, the Megger MPAC128 Acoustic Imager empowers you to pinpoint gas, pressure and vacuum leaks, as well as electrical partial discharge, from a protected distance of up to 120 m. With a 128 MEMS microphone array, real-time leak-rate quantification and crystal-clear visual overlays, you can catch problems early, slash energy losses and avoid unplanned outages, all while keeping personnel out of harm’s way.

▶ See the Megger MPAC128 Acoustic Imager in action:

Megger MPAC128 Acoustic Key Features:
- 128 MEMS microphones – rapid, precise leak and PD detection
- Range up to 120 m – safe surveys of hard-to-reach assets
- Wide view – 62° (H) × 48° (V) covers large areas in one shot
- 2–48 kHz band – adjustable dynamic range (0.5–12 dB) for fault isolation
- PRPD display – separates corona, surface and internal PD
- Leak quantification – e.g., 1 m @ 7 bar = 0.37 ml/s; 10 m @ 7 bar = 0.7 ml/s
- 8 MP camera + acoustic overlay – clear visual confirmation
- 7” touchscreen – 1024 × 600 resolution
- Focus function – reduces unwanted noise; converts ultrasound to audible sound
- Rugged IP54 – operates from −20 °C to +50 °C
- 6600 mAh battery – up to ~4 hrs use with sleep/auto-off options
- Flexible storage – 8 GB internal, microSD, USB-C; free Acoustic Analysis software
- Optional MPAC128-ATEX – ATEX-certified for Zone 2 (II 3G Ex ic IIC T5 Gc)
Built for your environment
The Megger MPAC128 Acoustic Imager thrives where leaks and discharges hide. Its IP54-rated chassis shrugs off dust and moisture while operating reliably from −20 °C to +50 °C. A full four-hour battery shift keeps you productive, and firmware updates via USB-C or microSD ensure your instrument always has the latest features.
Streamline your workflow
The Megger MPAC128 Acoustic Imager doesn’t just capture acoustic images—it transforms how you work. With only two parameters to set, you’ll be scanning within minutes. On-board leak-rate calculations feed straight into ROI reports, while PRPD plots eliminate guesswork in PD classification. Export JPEG images, WAV audio or MP4 videos in seconds for stakeholder review, and dive deeper with Megger’s free Acoustic Analysis software.
What comes with the Megger MPAC128 Kit?
- Megger MPAC128 Acoustic Imager
- 2 × Hand straps and shoulder strap
- Universal mains charger and USB-C charge cable
- Headphones for audible leak confirmation
- Hard protective transport case
- 8 GB microSD card and USB-A reader
- 8 GB dual-USB-C/USB-A memory stick
- Cleaning tool
- Quick-start documentation

Why choose the Megger MPAC128 Acoustic Imager?
Whether you‘re auditing compressed-air networks, safeguarding switchgear, or validating vacuum systems, the Megger MPAC128 Acoustic Imager delivers the speed, accuracy and certainty you need. Its powerful 128-mic array spots leaks others miss, while quantified results turn maintenance findings into clear financial value.
Ready to elevate your inspections?
Discover how the Megger MPAC128 Acoustic Imager can revolutionise your leak detection and partial-discharge monitoring—book a live demonstration with Acutest today! Request a quote, purchase from a trusted supplier, and experience professional-grade acoustic imaging backed by expert support.
Megger MPAC128 Acoustic Imager, where accuracy meets efficiency.
❓ Frequently Asked Questions (FAQ)
Q1: What types of faults can the Megger MPAC128 Acoustic Imager detect?
A. The instrument identifies compressed-air, gas and vacuum leaks, plus electrical partial discharge (corona, surface and internal).
Q2: How far away can I locate a leak with the Megger MPAC128 Acoustic Imager?
A. You can detect and locate sources from up to 120 metres, depending on leak size and ambient conditions.
Q3: Does the Megger MPAC128 Acoustic Imager give me a leak rate?
A. Yes. On-board algorithms provide real-time leak-rate estimates (e.g., 0.37 ml/s at 1 m, 7 bar) so you can calculate energy losses and ROI.
Q4: What is the battery life of the Megger MPAC128 Acoustic Imager?
A. A full charge delivers up to four hours of continuous operation under full load, with sleep and auto-off to conserve power.
Q5: Is the Megger MPAC128 Acoustic Imager suitable for harsh environments?
A. Absolutely. Its IP54-rated housing and −20 °C to +50 °C operating range ensure reliability in demanding industrial settings.
Q6: How do I export images and data from the Megger MPAC128 Acoustic Imager?
A. Use the supplied microSD card or USB-C/USB-A memory stick for quick transfer to your PC, then analyse with the free Megger Acoustic Analysis Software.
Q7: Can the Megger MPAC128 Acoustic Imager differentiate between different PD types?
A. Yes, the built-in PRPD function helps discriminate between corona, surface and internal partial-discharge patterns.