Sudden Cardiac Arrest (SCA) continues to be one of the leading causes of death in Australia.

Defibrillators have the power to change this and save lives.

Having a defibrillator means you can step in with the tools to save a life before paramedics arrive – every minute counts. Research shows survival rates of up to 70% can be achieved if an AED is on hand.

NEW: St John Defibrillators – Ready to help you save lives

The St John G5 and G3 Elite AEDs are simple, effective and ready for the rescue.
Combining real time CPR feedback, Rescue Ready technology, user-paced rescue prompts and proven technology,

St John AED’s are designed for both experienced and first time responders during a sudden cardiac arrest event.

Defibrillator range

St John G5 with Intellisense CPR
The G5 is the only AED to combine real-time CPR feedback with user-paced rescue prompting.
RRP $2,450.00
St John G3 Elite
The G3 Elite’s intuitive design makes it simple for rescuers of all skills levels. Step-by-step audio and visual instructions guide the user through the rescue.
RRP $2,150.00
St John G5 Bundle
Our easy to use G5 Defibrillator plus accessories in a value bundle. Product code: G5CAB
RRP $2,500.00
St John G5 with Intellisense CPR Bundle
Our easy to use G5 Defibrillator with Intellisense CPR (iCPR) plus accessories in a value bundle. Product code: 888G5FBCB
RRP $2,650.00
St John G3 Elite Bundle
The simple G3 Elite Defibrillator plus accessories in a value bundle. Product code:G3CAB
RRP $2,400.00


Defibrillator accessories

Defibrillator pads, batteries and accessories
View our range of defibrillator batteries and pads.
Defibrillator cabinets, cases and stands
Ensure your defibrillator is secure and easy to find when needed.

Defibrillators save lives

Why you need a Defibrillator during a sudden cardiac arrest:

  • Defibrillation within the first few minutes of having a Sudden Cardiac Arrest increases the chance of survival to over 70%
  • Without early defibrillation with an AED, less then 5% of cardiac arrest victims survive
  • Without defibrillation, for every minute that passes, the chance of survival reduces by 10%
  • Average Victorian ambulance response times are approximately 8-10 minutes in metro areas and up to 30 minutes in regional areas – defibrillation in combination with CPR gives victims the best chance of survival when waiting for Ambulance to arrive
There are very few times when a defibrillator is needed in the community, but when that time comes and it's your dad, your mum or someone you care about, you'd give an arm and a leg just to have one nearby. Having St John's defibrillator at our business helps our staff and customers have confidence that should the worst happen, someone is prepared and ready to help save lives.
Daniel - Gym owner
Breakwater Athletics

Defibrillator tips and resources

As the leaders in First Aid, we know a lot about defibrillators and how they can save lives. 

Learn about defibrillators and how to use them with our variety of helpful first aid articles, tips and resources.

Frequently Asked Questions

Defibrillators (also known as AEDs or automated external defibrillators) are devices that restore a normal heartbeat by sending an electric pulse or shock to the heart. They are used to prevent or correct an arrhythmia - a heartbeat that is uneven or that is too slow or too fast. If an individual is showing signs of a cardiac arrest, a defibrillator can be used to return their heart to its normal rhythm. A defibrillator is very simple to use, most devices prompt you through exactly what to do. Basically to use, adhesive pads are applied to a bare chest, the device analyses the heart rhythm and a shock is administered if required.

The cost of a defibrillator can vary, depending on the brand and device, although typically they retail for $2,000-$3,000.

When purchasing a defibrillator it's important to assess the environment it's for. For example, the FRx defibrillator is well suited for vigorous activity in the elements as it can bear loads up to 250kg and a drop of up to 1 metre, making it well suited for workplaces such as building, construction, sporting facilities and gyms. Defibrillators are expensive, because of the rigorous level of research and development that goes into each unit, so it's important that you speak to someone knowledgeable about the devices before purchasing one.

A defibrillator is a vital component in the chain of survival - a series of actions that when properly executed, reduce the mortality associated with sudden cardiac arrest. These actions include, early access, early CPR, early defibrillation and early advanced care. Early defibrillation is the link in the chain most likely to improve survival. Every minute without defibrillation decreases the chance of survival by 10%.

When it comes to sudden cardiac arrest, a defibrillator can be the difference between life and death, so it's very important all public places have one on hand in case of an emergency. While the Australian Resuscitation Council states having a defibrillator is good practice, there are no current regulations or guidelines around which businesses or industries should be required to have a Defibrillator. It is up to each business to assess their needs, their level of risk and make the decision.

A defibrillator provides a shock that interrupts the misfiring electrical signals that occur in ventricular fibrillation (otherwise known as chaotic or irregular heart beats). This shock then stops the heart momentarily, allowing it to reset and start rhythmically contracting again.

When it comes to defibrillation, energy matters more than current. In terms of shock efficacy, all biphasic waveforms are equivalent up to 200 joules. Not all patients convert at energy levels up to 200 joules.

Defibrillators are used about 1-2% of the time by the public in the event someone is suffering a sudden cardiac arrest. This is not enough to improve survival rates. Our goal at St John Ambulance is for 50% of patients who experience out of hospital cardiac arrest to receive defibrillation by 2023.

In Victoria a defibrillator can and should be registered with Ambulance Victoria Registration is straightforward and easy and means that emergency services can direct GoodSAM community responders to their nearest defibrillator in the event someone is suffering a cardiac arrest nearby.

In most instances, it is unlikely that a baby will need an AED. Concentrate on giving effective CPR while you wait for an ambulance. However, for children under 8, specific infant/child pads or 'keys' are available to adjust the electrical current delivered by the AED, so that it is suitable for children.

A defibrillator needs to be maintained, this includes pads and battery checks to ensure they are not expired, display checks and full health checks every year by professionals. All AEDs perform self-maintenance checks on a daily, weekly and monthly basis to ensure that they are ready for use. In the event that the machine fails part of the test, the machine will beep to alert you that there is a fault with the machine.

Defibrillators can be purchased at St John but if funding is limited, there are a number of community grants that organisations can apply with to get a defibrillator.

A defibrillator can be applied to anybody who is unconscious or not breathing in attempting to help restart their heart.

The life on a defibrillator battery can vary depending on the manufacturer, most will need to be replaced every 2-5 years.

Except in the case of a small building, it is usually recommended that a minimum of one AED unit be placed on each floor of a workplace. It is also recommended that you calculate the response time using a route that includes stairs as opposed to an elevator. Any area that is difficult to access should have its own AED unit.

When someone is shocked by an AED you may see a very slight shoulder shrug or movement, but their arms and legs will not shoot up like in the movies.

A Cardiac Defibrillator Implant (ICD) is a small battery-powered device placed in your chest to monitor your heart rhythm and detect irregular heartbeat. An ICD can deliver electric shocks via one or more wires connected to your heart to fix an abnormal heart rhythm.

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