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-1 points

That mean the smoke detector need to be tested. Push the button for testing and the light, after, will be a hard green, no flashling.

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3 points
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Not if it is a photoelectric smoke detector, which is the only type you should have unless you got a good reason for ionisation smoke detector.

The blinking is the smoke detector checking for smoke particles.

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9 points

photoelectric detectors use infrared LEDs. and they are inside the detector, shielded so stray light will not cause any problems.

Any red LED you see on a smoke detector is for statuses, not detecting

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4 points

Thank you for the correction, you’re right. I got it mixed up with the status LED that some/most(?) smoke detectors have that will periodically blink to show that it’s active.

Regardless, a smoke alarm blinking red is to be expected, and doesn’t mean that it needs to be tested. Most of them will make a loud ping to notify the user that it requires attention, as you can’t expect people to notice the blinking LED alone.

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14 points

No my smoke detector had an ‘operational light’. It flashed every 30 seconds or so, so you knew it didn’t have a dead CPU or so.

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