How to Test Smoke and CO Detectors
Safety first
![man checking smoke detector](https://media.angi.com/s3fs-public/man-checking-smoke-detector-ceiling.jpg?impolicy=leadImage)
![man checking smoke detector](https://media.angi.com/s3fs-public/man-checking-smoke-detector-ceiling.jpg?impolicy=leadImage)
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Locate Control Buttons
Find the "test" or "reset" button on your smoke and carbon monoxide detectors. If you are having trouble finding it, refer to the manufacturer's instructions.
Test Each Device Separately
How many smoke detectors do you have? It usually depends on the type and age of your home. They can be anywhere, so do a good search! Also, some systems are connected – meaning when one goes off they all do. But, in case not, be sure to test each one separately. Even if the smoke detectors are interconnected, you should still test each one to make when one goes off, it triggers the others.
Press Button
Press the button (Note: you may need a paper clip). If it goes off, your detector is working. The test usually runs about 30 seconds. If your detector does not work, try putting in new batteries. Repeat the test.
Alarms Going Off
Warning: If the smoke detector is hooked up to your burglar alarm, then we recommend you call your provider in advance to alert them of the test.
Purchase Detectors
If you don't have smoke detectors in your home, read Purchase Smoke and CO Detectors.