Timboon is now home to five defibrillators after the town's pool was given its own device this week.
Lochard Energy donated the $2500 machine which paramedic Andrew Berry said was the only one in the town that was compatible with the ones the Timboon ambulance service uses.
Mr Berry said it could take up to 30 seconds to change the pads over on machines that weren't compatible, a short amount of time that could be the difference between life and death.
"So in this case, when we arrive all we have to do is take the connection out of that one AED (automated external defibrillator) and plug it into ours," he said.
Others defibrillators in town are housed at the football club, bowls club, golf club and main street.
Mr Berry said having a defibrillator at the pool was important because a few months ago someone went into cardiac arrest at the Terang pool.
"We were lucky enough to have an AED on scene and that person's currently alive and walking around," he said.
"You've only got to save one person's life and that's the best $2500 ever spent."
The defibrillator's location will be included on the Good Sam app which alerts health professionals who may be visiting the area that someone nearby is in cardiac arrest.
"We can use that in our own time off to go and assist the community," Mr Berry said.
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