What does the date on my smoke detector mean?

The date printed on the back of your alarm is not an expiration date. It is the day your unit was manufactured. Learn more in our guide, Find an Alarm’s Model # or Date of Manufacture . Is your old smoke or CO alarm still good?

How do I find the manufacture date of my alarm?

The manufacture date code is stamped on the label located on the back of the alarm.

What is the average life of a smoke detector?

8-10 years
Next time you change the battery in your smoke detectors, be sure to check its age, as well. According to the U.S. Fire Administration, most alarms have a life span of 8-10 years. After this time, the entire unit should be replaced. Most alarms have the date of manufacture inside the unit.

Why is my smoke alarm chirping every 30 seconds?

If a smoke alarm is chirping consistently, one of the following may be the reason: The battery may need to be replaced. An alarm will chirp every 30 to 60 seconds for a minimum of seven days. With a “low battery” announcement, disconnect the unit and replace the batteries.

Why are smoke detectors only good for 10 years?

As electronic devices, smoke alarms are subject to random failures. In 10 years there is roughly a 30% probability of failure before replacement. Replacing alarms after 10 years protects against the accumulated chance of failure, but monthly testing is still your first, best means of making sure your alarm will work.

Do smoke detectors need to be replaced every 10 years?

All smoke alarms need to be replaced EVERY 10 years. After 10 years smoke alarms may not operate effectively due to dust build up, insects, airborne contaminants and electrical corrosion. They must be replaced every 10 years. Mains powered (hard wired) smoke alarms need to be replaced by a licensed electrician.

How do you get a smoke detector to stop chirping?

Resetting the Alarm

1. Turn off the power to the smoke alarm at the circuit breaker.
2. Remove the smoke alarm from the mounting bracket and disconnect the power.
3. Remove the battery.
4. Press and hold the test button for at least 15 seconds.
5. Reconnect the power and reinstall the battery.