C02 Detectors

On the 28th of October 2005, the beverage gas standard Australian Standard AS5034 was introduced. The standard outlines the requirement for the use of inert gases for beverage dispensing and looks at all areas associated with the hazards of compressed and refrigerated gases such as carbon dioxide.

Compressed inert gas systems (beer gas) consist of:

Gas Supply Systems Cylinders (single and multiple, refrigerated liquid CO2 supply, on-site gas generation and mixing and compressed air.

Gas Distribution Systems Regulator boards, safety devices and piping.

Beverage Dispensing Applications – Post mix and ready to drink (pre-mix) applications, bottled wine dispensing, draught beer and ready to drink kegs.

Types of premises that may be affected are: 

– Bowling clubs

– RSL clubs                                                                     cellarsafe

– Workers Clubs

– Pubs

– Hotels

– Night Clubs

– Yacht Clubs

– Restaurants

– Sports Clubs

– Bars

– Sporting Events

– Cinemas

 Carbon Dioxide effects of humans

– Increased pulse and respiration rate

– Ability to maintain attention and think clearly affected

– Loss of muscle coordination
- Judgment becomes impaired, injuries may cause no pain or feeling

– Headache
- Muscular effort causes extreme fatigue

– Nausea and vomiting

– Ability to move lost

– Permanent brain damage can occur

– Unconsciousness

– Breathing reduced to gasps and convulsions ensue

– Higher concentrations can cause circulatory deficiency leading to coma and death.

Any of the above symptoms could happen in less than 3 minutes and by the time someone notices you are missing, it could be too late.


Let A&J Air fit a CO2 gas monitoring system which has been specifically designed to warn personnel of a carbon dioxide leak or to the depletion of oxygen (if the O2 option is chosen) The CO2 gas monitoring system is installed within the cellar and has a remote indicator which is placed outside the room which emits an audible and visual alarm when toxic levels have been reached. CO2 gas monitoring systems are specifically designed for each individual location to ensure you are compliant with AS5034. All CO2 gas monitors are calibrated once installed and a certificate of compliance is issued.


In accordance with As5034 each CO2 gas monitor is required to be calibrated every 6 months. Our highly skilled staff will discuss and inform you of your obligations and ongoing maintenance scheduling.