How To Check Your Alarm's Expiration Date | Add checking your smoke and carbon monoxide alarms' expiration dates to your spring-cleaning list this year and stay safe year-round! Watch our how-to...
![MontgomeryCo(MD)Fire on Twitter: "#DYK your smoke alarm's expiration date? The entire unit needs to be replaced EVERY 10 years. Is it time for a new one? #testittuesday https://t.co/8GH4YXpyQa" / Twitter MontgomeryCo(MD)Fire on Twitter: "#DYK your smoke alarm's expiration date? The entire unit needs to be replaced EVERY 10 years. Is it time for a new one? #testittuesday https://t.co/8GH4YXpyQa" / Twitter](https://pbs.twimg.com/media/EWuVHO-XkAIEZDv.png)
MontgomeryCo(MD)Fire on Twitter: "#DYK your smoke alarm's expiration date? The entire unit needs to be replaced EVERY 10 years. Is it time for a new one? #testittuesday https://t.co/8GH4YXpyQa" / Twitter
![Moorhead Fire on Twitter: "Is your smoke alarm older than 10 years? If so, it's time for a replacement! To find out how old your smoke alarm is and its expiration date, Moorhead Fire on Twitter: "Is your smoke alarm older than 10 years? If so, it's time for a replacement! To find out how old your smoke alarm is and its expiration date,](https://pbs.twimg.com/media/Drf8gW6U8AAqhaR.jpg)