Description
The FOTRIC H4 is a professional-grade acoustic imaging camera built for serious industrial inspection. Equipped with 112 MEMS digital microphones and a full partial discharge detection suite, it diagnoses both leak faults and electrical PD faults in a single device.
The H4’s Acoustic Focus Mode filters background noise to deliver precise signal isolation — essential in noisy plant environments. Automatic partial discharge classification (surface, floating, corona) provides instant, actionable fault diagnosis without post-processing.
Key Specifications
| Microphones | 112 MEMS digital |
| Acoustic FOV | 66° × 52° |
| Frequency range | 2–100 kHz |
| Sound sampling rate | 200 kHz |
| Acoustic refresh rate | 25 Hz |
| Working distance | 0.3–200m (1–626ft) |
| Detection modes | LQ Mode (leak/level), PD Mode (PRPD diagram, 50/60Hz) |
| PD diagnostics | Surface, floating, tip (corona) discharge — auto-classified |
| Leak evaluation | Automatic ID, severity evaluation, annual energy cost calculation |
| Display | 5″ 1280×720 LCD touchscreen, Gorilla Anti-Explosion glass |
| Battery | 2× batteries, ≥4 hours per battery |
| Enclosure | IP54 (IEC 60529) |
| Operating temperature | −20°C to +50°C |
| Weight (incl. battery) | 1.3 kg |
| Warranty | 2 years |
| Analysis software | AnalyzIR Professional (included) |
Applications
Electrical partial discharge surveys · Compressed air audits · Predictive maintenance programmes · Gas leak detection · Industrial plant inspection
Demo Available
HNT Automation holds an H4 demo unit available for live demonstrations. Contact us to arrange a free visit to your site.
Price available on request.
This product is subject to a confidential pricing agreement. Contact us for a personalised quote, or to arrange a free 45-minute onsite demonstration with our FOTRIC demo unit.




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