How do I know which kind of smoke detector I have?
A new detector should be marked on the outside of the package to indicate if it uses ionization or photoelectric technology. For older or existing detectors you will need to remove the smoke detector and look on the backside.

The date of manufacture should be on the back; if not, the detector is most likely outdated and should be replaced to comply with the regulation. It is an ionization smoke detector if the word “AMERICIUM” is on the back.

Show All Answers

1. What are the smoke detector requirements?
2. What is the difference between ionization and photoelectric technologies?
3. What are the carbon monoxide alarm requirements?
4. What is fossil fuel burning equipment?
5. How will I know what I need?
6. What are the requirements if your 1 or 2 family house was built before January 1, 1975?
7. What are the requirements if your 1 or 2 family house was built between 1975 and August 27, 1997?
8. What are the requirements if your 1 and 2 family house was built after August 27, 1997?
9. What are the requirements if your 1 and 2 family house was built on or after January 1, 2008?
10. How will I get a certificate of compliance?
11. How do I know which kind of smoke detector I have?
12. Can I still have ionization smoke detectors if I am not selling or transferring my home?
13. Are combination carbon monoxide smoke detectors permitted?
14. Are there other recommendations?