Methane Leak Detection

Leaks are not always easy to find in the field.

Methane leaks often happen around valves, flanges, wellheads, compressor areas and pipeline facilities. Some leaks are small, some are intermittent, and some are located in places where manual inspection is difficult or unsafe.

For most sites, one method is not enough. Inspection teams need a handheld tool to find and confirm suspected leaks, while high-risk locations may need fixed monitoring for early warning.

  • Find suspected leak points during field inspection.
  • Verify CH4 concentration when methane evidence is needed.
  • Monitor gas wells, valve groups and pipeline stations continuously.
  • Support LDAR, maintenance records and site safety workflows.
methane gas leak localization in an industrial facility using acoustic imaging
Acoustic imaging helps inspection teams see where a suspected leak sound is coming from.
Two Roles

Handheld inspection and fixed monitoring work together.

HA3LX is used when engineers walk the site and need to check suspected leak points. HZ-WL-15A is used when a gas well, valve group or pipeline station needs continuous acoustic monitoring.

HA3LX for inspection teams

Use HA3LX during LDAR routes, plant inspection, LNG site checks and oil & gas maintenance work. It helps users locate the acoustic source first, then verify CH4 concentration with TDLAS.

  • Walk-around methane inspection
  • Gas leak acoustic localization
  • TDLAS methane verification
  • Inspection images and records
Handheld TDLAS CH4 LDAR

HZ-WL-15A for high-risk points

Use HZ-WL-15A where continuous manual inspection is not practical. It listens for leak-related sound signatures around gas wells, wellhead valves and pipeline stations, then sends alarms to a platform.

  • Fixed acoustic monitoring
  • Gas well and valve monitoring
  • Edge AI local recognition
  • 4G, Ethernet and Modbus TCP
Fixed Edge AI Remote alarm
HA3LX acoustic and TDLAS methane leak detection camera HA3LX TDLAS methane concentration verification during gas leak inspection
Handheld Methane Inspection

HA3LX Acoustic & Methane Laser Camera

HA3LX is for inspection teams who need to walk the site, check suspected leak points and keep inspection evidence. The camera combines acoustic imaging with TDLAS methane detection, so users can locate the leak-related sound source and verify whether methane is present along the measurement path.

It is suitable for oil and gas facilities, LNG sites, chemical plants, compressor areas, valves, flanges, pipelines and LDAR inspection routes.

144 Digital MEMS microphones for acoustic imaging.
TDLAS Methane laser detection for CH4 verification.
2 kHz–150 kHz Frequency bandwidth for audible and ultrasonic inspection.
0.3–210 m Operating distance for field inspection.
  • Use when operators need to confirm a suspected leak on site.
  • Use when both acoustic location and methane evidence are required.
  • Use for LDAR routes, maintenance inspection and safety checks.
Fixed Acoustic Monitoring

HZ-WL-15A Gas Well & Valve Leak Monitor

HZ-WL-15A is for locations that need continuous attention but cannot rely only on manual inspection. It captures leak-related acoustic signatures around gas wells, wellhead valves and pipeline stations, analyzes the signal locally, and sends alarms through wired or wireless communication.

It is especially useful for remote well sites, valve groups, pipeline stations and hazardous field environments where early warning is more important than periodic inspection alone.

9 MEMS Acoustic sensor array for leak signature capture.
20 Hz–80 kHz Frequency range for audible and ultrasonic leak sounds.
Edge AI Local leak recognition and abnormal sound judgment.
4G / Ethernet Remote alarm and platform integration.
  • Use when fixed points need long-term acoustic leak monitoring.
  • Use for gas wells, wellhead valves, valve groups and stations.
  • Use when alarm data needs to be sent to a platform or SCADA system.
HZ-WL-15A fixed acoustic gas well and valve leak monitoring device gas well valve group methane leak monitoring field installation
Applications

Typical methane leak detection sites

The same site may need both manual inspection and fixed monitoring. HA3LX is used for inspection rounds. HZ-WL-15A is installed at risk points that need continuous warning.

Gas wells and wellheads

Monitor wellheads, Christmas trees, gas outlets and surrounding pressure equipment.

Valves and flanges

Check valve gaps, flange seals, fittings and pressure control components.

Pipeline stations

Use fixed monitoring around metering stations, valve groups and pressure regulation areas.

LDAR routes

Use HA3LX to support leak detection and repair inspection records.

LNG and gas handling

Inspect LNG/CNG facilities, compressor areas and gas handling equipment.

Remote field sites

Use HZ-WL-15A where manual inspection is limited by distance, staffing or safety conditions.

How It Works

From suspected leak to inspection record or alarm.

The process is simple: capture the leak-related acoustic signal, identify where it comes from, then either verify methane on site or send an alarm from a fixed monitoring point.

1

Capture leak sound

Escaping gas can generate audible and ultrasonic sound around small openings, valve gaps or damaged seals.

2

Locate or analyze the signal

HA3LX shows the suspected acoustic source on screen. HZ-WL-15A analyzes leak-related sound features locally.

3

Verify or alarm

HA3LX verifies CH4 concentration with TDLAS. HZ-WL-15A uses edge AI to decide whether the sound pattern indicates leakage.

4

Record or transmit

Inspection images, CH4 readings, event records and alarm data can support maintenance work and safety management.

onsite acoustic methane leak monitoring installation near gas well valves
Fixed acoustic monitoring is suitable for gas wells, valve groups and remote field installations.
Selection Guide

When to use each product

Choose based on how your team works: manual inspection, fixed monitoring, or both.

Need Recommended product Reason
Walk-around methane inspection HA3LX Handheld operation with acoustic imaging and TDLAS methane verification.
LDAR route inspection HA3LX Helps inspectors locate suspected leak sources and keep visual evidence.
Confirm CH4 concentration on site HA3LX TDLAS methane detection can verify methane along the measurement path.
Monitor gas wells or valve groups continuously HZ-WL-15A Fixed installation with acoustic leak signature monitoring and edge AI.
Send leak alarms to a remote platform HZ-WL-15A Supports 4G, Ethernet, HTTP, WebSocket and Modbus TCP workflows.
Combine routine inspection with fixed early warning HA3LX + HZ-WL-15A Use HA3LX for inspection rounds and HZ-WL-15A for high-risk fixed points.
Field Images

Inspection and monitoring in real gas facilities

Use this area to show what users actually care about: where the equipment is used, what the operator sees, and how the monitoring point is installed.

gas leak localization image from HA3LX acoustic camera
HA3LX leak source localization during field inspection.
CH4 methane concentration measurement using HA3LX TDLAS
CH4 verification after locating the suspected leak area.
gas well valve group field installation for methane leak monitoring
Gas well valve group where fixed acoustic monitoring can be deployed.
FAQ

Common questions

Do I need both HA3LX and HZ-WL-15A?

Not always. Use HA3LX if your main task is field inspection or LDAR. Use HZ-WL-15A if you need continuous monitoring at fixed points such as gas wells, valves or pipeline stations. For high-risk sites, the two products can be used together.

Is HA3LX a methane detector or an acoustic camera?

It is both. HA3LX combines acoustic imaging with TDLAS methane detection, so it can help locate the suspected leak source and verify CH4 concentration.

Where should HZ-WL-15A be installed?

Typical locations include gas wells, wellhead valves, valve groups, pipeline stations and other fixed points where continuous leak monitoring is needed.

Can this page support LDAR-related searches?

Yes. The HA3LX part should be linked with LDAR, fugitive emission inspection, methane verification and field documentation. You can also add related articles later to strengthen this topic.

Can HZ-WL-15A replace gas concentration sensors?

It is better to present it as a complementary layer. HZ-WL-15A listens for leak-generated sound signatures and can work together with gas concentration sensors, SCADA platforms and site safety systems.

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