Gas detector calibration Sydney

JWII are a Sydney based Gas Detection System supplier and have been in the business of supplying gas detectors and analysers since 1982. JWII’s core focus is instrumentation supply and after sales support Australia wide and has a client base across a very diverse range of industries. Most manufacturers in Australia would have some form of instrumentation supplied by JWII.


JWII supply a wide range of fixed and portable Gas Detection Systems covering a wide range of applications. JWII technical staff can guide our clients on which technology to select and the location of the detection systems to get the best results.


Typical gases detected are

  • Acetylene
  • Alcohol vapor
  • Ammonia
  • Biogas
  • Carbon monoxide
  • Chlorine
  • Freon
  • Gasoline
  • Natural gas
  • Oil vapor
  • Others
  • Oxygen
  • Propane-butane
  • Sulfur dioxide
  • Toluene

Calibration service

Gas detectors are a critical part of safety systems and are designed to alert the plant to potential hazardous situations if a gas exceeds a certain limit. Continuously measuring the environment is important for the safety of employees and the public. The health effects of exposure to certain gas types can be harmful, so making sure your Gas Detection System is calibrated and certified annually is a very important part of ownership.


JWII able to offer precise calibration of all types of gas detectors, either in house in Sydney or on-site Australia wide.
These include:

  • Car Park Gas Detectors
  • Multi Gas Detectors
  • Personal Gas Detectors
  • Portable four gas monitors
  • Portable two gas monitors
  • Enclosed space monitors
  • CO2 Gas detectors
  • Fixed Gas detection instruments
  • Refrigerant plant gas monitoring
  • Ammonia plant leakage monitoring
  • Oxygen detection systems


Contact a calibration specialist.

We have calibration specialists available 24/7 please contact us and we will advise you on the calibration service we can offer based on your needs, and provide a quotation.


Oil and gas - Flammable % LEL, VOL Monitoring

FACTORY ENVIRONMENTAL GAS Monitoring Systems Products

Site analysis and system engineering

Each project starts with consultation on our clients requirements. JWII then design a Gas Detection System to meet the project needs

Service and maintenance

Our service team can provide comprehensive field service as well as workshop repairs. We can also help you plan the maintenance of your devices with a periodic maintenance contract.

Site Installation

Our in house technical team can assist you in the installation and commissioning of your gas detection system. From physical mounting to connection and start up.

Calibration Services

Our calibration facility offers you peace of mind that your gas detection system is operating to specification. We can carry our field calibration as part of your service contract or in house calibration at our facility.

Discover all type of applications

We also have IECEx certification so you can be confident that we conform with all necessary legislation and regulations.

JWII Gas and Flame Detection Solutions

JWII Gas Detection focus on high quality gas detection systems with a complete support package including design, drawing, commissioning and after sales support
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