
How The Circuit works
Register your defibrillator on The Circuit
When you register your defibrillator, the ambulance service will be able to see it when someone calls 999. It’ll also be available on the DefibFinder website.
Maintain your defibrillator
The Circuit will send you email reminders to check your defibrillator. It will also tell you when your pads expire and if someone is sent to your defibrillator in an emergency.
Record your checks on The Circuit
Recording a status check takes just a few minutes. It provides ambulance services with the confidence that it is ready to use in an emergency.
Out-of-hospital cardiac arrests in numbers
There are more than 30,000 out of hospital cardiac arrests a year in the UK.
-
Under 1 in 10 survive an out-of hospital cardiac arrest.
-
Less than 10% of these see a defibrillator being used.
Registering defibrillators on The Circuit and regularly recording status checks provides the ambulance service and the village with the confidence that the defibrillators are ready to use
One of the main reasons that I'm still alive today is that the passersby who witnessed my collapse were directed to the nearest defibrillator by the emergency services. This was only possible because the defibrillator had been registered on The Circuit.
Register your defibrillator on The Circuit
Registering your defibrillator ensures ambulance call handlers can see it if someone has a cardiac arrest. It could help save a life.
Brought to you by

In partnership with




.jpg?rev=5cfe47c459204344b16a8ec7d0c0d4c1&la=en&h=600&w=600&hash=F0164C45CA4DCF6EBB12A703F09429FB)
Proudly supported by

You might also be interested in
Our defibrillator stories
Meet people whose lives have been changed by defibrillators, and organisations ensuring their defibrillators could help save a life.
Find your nearest defibrillator
To find your nearest defibrillator quickly and easily, type a UK postcode into our DefibFinder.
Funded defibrillators for community groups
We’re offering free, BHF-funded public defibrillators to eligible community groups from summer 2025.