One Handheld. Three Faults Made Visible.
The Hertzinno acoustic cameras are the all-rounders of the range. In a single sub-1.2 kg unit, with no thermal or methane add-on to carry, they image partial discharge, gas leaks and mechanical noise as a picture made of sound, then classify and quantify the find on the device. SepcoTech supplies the third-generation HA3 and the HZ-HA-170P and HZ-HA-171P series.
Everything the Range Does, Minus the Add-Ons
The Hertzinno acoustic cameras are the pure acoustic-imaging models: the same dense MEMS array and AI beamforming that the rest of the range is built on, but without the laser-methane sensor of the HA3LX or the thermal core of the HA3T. That keeps them light, simple and affordable, and still able to handle the three faults that matter most aboard ship.
The third-generation HA3 is the base camera the whole HA3 family is built on, with a 144-channel array, laser rangefinder and removable battery. The HZ-HA-170P and HZ-HA-171P are leaner siblings: fewer channels, a 720P screen, no laser or fill light, that trade features for cost and, in the 171P's case, battery endurance.
- One camera covers partial discharge, gas-leak and mechanical diagnostics
- Non-contact: it images from a distance, nothing is opened or shut down
- On-device PRPD AI classifies the discharge type, not just its presence
- Estimates the leak rate and reports condition parameters on screen
One Camera, Three Jobs, and Where Each Earns Its Place
Partial discharge, gas leaks and mechanical wear share one trait: none shows on a walk-round until it is serious. The acoustic camera switches mode to surface all three.
Find arcing in the switchboard before it trips the ship
Partial discharge in high-voltage switchgear and cabling emits a faint ultrasonic signature long before it flashes over. In Partial Discharge mode the camera locates it from a safe distance and the on-device PRPD AI classifies the discharge type (corona, surface, floating or particle/noise), so you know whether it is a watch item or a work order.
- AI classifies discharge type, not just presence
- Inspect energised switchgear without opening panels
- Phase-resolved (PRPD) analysis for condition trending
Aboard ship: main and emergency switchboards, HV cable terminations and transformers.
See a compressed-gas leak as sound, then put a number on it
Pressurised gas escaping through a flange, valve gland or seal makes ultrasound the ear cannot hear. In Gas Leak mode the camera maps that sound onto the live image, so the source is obvious even across a deck, and the software estimates the leak rate in the field. The HA3 detects leaks from as little as 0.0032 L/min at 2.5 m, as published by Hertzinno.
- Locates compressed-air and gas leaks across a compartment
- HA3 detects from 0.0032 L/min at 2.5 m
- HA3 and 170P are ATEX intrinsically-safe for classified zones
Aboard ship: instrument-air and service-air lines, pneumatic systems, valve and flange seals. For laser-quantified methane on cargo systems, see the gas-leak cameras.
Hear the bearing going, before it takes the machine with it
In a noisy engine room Mechanical mode isolates the one sound that has changed. It locates abnormal sources on pumps, compressors and gearboxes so worn bearings, misalignment and poor lubrication are caught while they are still cheap to fix, and trended between port calls.
- Pinpoints the faulty component in a wall of noise
- Supports trend-based, condition-led maintenance
- Cuts unplanned downtime and breakdown cost
Aboard ship: engine-room pumps, compressors, fans and gearboxes. For a fused thermal hot-spot check in the same pass, see the acoustic + thermal cameras.
HA3, HZ-HA-170P & HZ-HA-171P
Three pure acoustic cameras: the third-generation flagship and two leaner siblings. Full specifications below, as published by Hertzinno. Add any of them to your quote.
Hertzinno HA3
The third-generation base the whole HA3 family is built on. A 144-channel low-noise MEMS array and on-device AI image partial discharge (with PRPD type recognition), gas leaks and mechanical faults, backed by a 13 MP optical camera, a 5-inch full-HD touchscreen, a laser rangefinder and a removable battery with a spare in the kit. ATEX-certified and under 1.2 kg, as published by Hertzinno.
- Microphone array144 MEMS
- Frequency band2–130 kHz
- Localization±1° · ≤1 cm @ 1 m
- ModesPD · Leak · Mechanical
- Gas-leak>0.0032 L/min @ 2.5 m
- Laser rangefinder0.1–30 m
- ATEXEx ib IIC T4 Gb
- Weight<1.2 kg · IP54
Full specifications ⌄
| Microphone array | 144 MEMS microphones · microphone self-check |
| Frequency band | 2 kHz – 130 kHz |
| Dynamic range | −30 to 120 dB · multiple-target range 0–18 dB |
| Min. imaging sensitivity | 10 kHz 3 / 20 kHz −15 / 40 kHz −5 / 60 kHz 10 / 80 kHz 35 / 100 kHz 45 dB SPL |
| Localization | ±1° · ≤1 cm @ 1 m @ 40 kHz |
| Operating distance | 0.3 – 210 m |
| Detection modes | Partial Discharge / Gas Leak / Mechanical |
| PD type recognition | Noise (particle) / Corona / Surface / Floating (PRPD AI) |
| Gas-leak detection | > 0.0032 L/min from 2.5 m |
| Optical camera | 13 MP · FOV 72° · 4K (3840×2160) / 1080P photo · 1/2/4/8 zoom · 1080p video @30/60 fps |
| Display | 5-inch 1920×1080 capacitive touchscreen |
| Storage | 128 GB microSD |
| Notes | Text / voice / photo / tag annotations · E-compass |
| Connectivity | Wi-Fi 802.11a/b/g/n/ac (2.4 / 5 GHz) · Bluetooth 4.2 · USB-C |
| Lighting | 1 W LED fill light |
| Laser rangefinder | 0.1 – 30 m · ±1 mm · Class II, 620–690 nm, <1 mW |
| Power | Li-Ion removable battery (+ spare in kit) · ~4 h operation / 8 h standby · USB-C PD fast charge 2.5 h (10→90%) |
| Ingress | IP54 |
| ATEX | Ex ib IIC T4 Gb & Ex ib IIIC T80 °C Db |
| Weight / dimensions | < 1.2 kg · 333 × 152 × 115 mm |
| Environment | Working −20 to 55 °C · storage −40 to 85 °C · humidity 10–95% non-condensing |
| Analysis | On-device + PC + cloud |
| Mount | Tripod UNC 1/4-20 |
| Package | Camera · USB charger · charging dock · spare battery · carrying case · manual · factory test report · accessory kit |
Hertzinno HZ-HA-170P
A leaner ATEX-certified acoustic camera with a 138-channel MEMS array and the same three detection modes (partial discharge, gas leak and mechanical) in a ~980 g body. It trades the HA3's laser rangefinder, fill light and Bluetooth for a simpler, lighter unit with a 5-inch 720P touchscreen and an internal battery, as published by Hertzinno. No thermal.
- Microphone array138 MEMS
- Frequency band2–100 kHz
- Operating distance0.3–200 m
- ModesPD · Leak · Mechanical
- BatteryInternal · 4 h / 8 h standby
- Display5-inch 720P
- ATEXEx ib IIC T4 Gb
- Weight~980 g · IP54
Full specifications ⌄
| Microphone array | 138 MEMS microphones |
| Frequency band | 2 kHz – 100 kHz |
| Frame rate | 30 fps |
| Dynamic range | −30 to 120 dB |
| Min. imaging sensitivity | 10 kHz 1 / 20 kHz −10 / 30 kHz −6 / 40 kHz 3 / 50 kHz 6 / 60 kHz 20 dB SPL |
| Operating distance | 0.3 – 200 m |
| Detection modes | Partial Discharge / Gas Leak / Mechanical · no thermal |
| Optical camera | 13 MP |
| Display | 5-inch 720P touchscreen |
| Storage | 64 GB |
| Connectivity | Wi-Fi (no Bluetooth) |
| Lighting / laser | No LED fill light · no laser rangefinder |
| Power | Internal (non-removable) battery · 4 h operation / 8 h standby |
| Carry | Wrist strap |
| Ingress | IP54 |
| ATEX | Ex ib IIC T4 Gb & Ex ib IIIC T80 °C Db |
| Weight | ~980 g |
Hertzinno HZ-HA-171P
The endurance variant of the HZ-HA-P series: a 128-channel MEMS array and the same three detection modes, built around a replaceable battery delivering up to 7 hours of operation for long inspection rounds. 5-inch 720P touchscreen and Wi-Fi, no thermal, as published by Hertzinno. ATEX rating on request.
- Microphone array128 MEMS
- Frequency band2–100 kHz
- Operating distance0.3–200 m
- ModesPD · Leak · Mechanical
- BatteryReplaceable · up to 7 h
- Display5-inch 720P
- ATEXOn request
- Weight~1100 g
Full specifications ⌄
| Microphone array | 128 MEMS microphones |
| Frequency band | 2 kHz – 100 kHz |
| Frame rate | 30 fps |
| Dynamic range | −30 to 120 dB |
| Min. imaging sensitivity | 10 kHz 1 / 20 kHz −10 / 30 kHz −6 / 40 kHz 3 / 50 kHz 6 / 60 kHz 20 dB SPL (same as 170P) |
| Operating distance | 0.3 – 200 m |
| Detection modes | Partial Discharge / Gas Leak / Mechanical · no thermal |
| Optical camera | 13 MP |
| Display | 5-inch 720P touchscreen |
| Storage | 64 GB |
| Connectivity | Wi-Fi (no Bluetooth) |
| Lighting / laser | No LED fill light · no laser rangefinder |
| Power | Replaceable battery · up to 7 h operation |
| Weight | ~1100 g |
| ATEX | On request |
The Camera, Working
Footage published by Hertzinno: an acoustic gas-leak inspection on an oil & gas site, the same imaging the acoustic cameras use aboard ship.
Hertzinno Acoustic Cameras: Common Questions
New to acoustic imaging? Our guide explains how it works and where each mode is used.
What is the difference between the HA3, HZ-HA-170P and HZ-HA-171P?
What does an acoustic camera detect aboard ship?
Are the acoustic cameras ATEX-certified?
How small a leak can the HA3 find?
Do these cameras have a thermal or methane sensor?
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