How many types of CO devices are available?
There are 3 types:
1. Carbon Monoxide alarms (CSFM category #5276)
2. Carbon Monoxide detectors (CSFM category #5278)
3. Combination smoke / Carbon Monoxide
detector (CSFM category #7256 or 7257).

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1. What is Senate Bill No. 183 (SB-183)?
2. What is Carbon Monoxide?
3. What is the effective date for installing a CO device?
4. Where can I find a list of all CS FM listed carbon monoxide devices?
5. What is the definition of a dwelling unit?
6. Where should CO devices be installed in homes?
7. How many types of CO devices are available?
8. What is the difference between a carbon monoxide alarm and a carbon monoxide detector?
9. Are CO devices required to be approved by the State Fire Marshal?
10. If someone has a CO device that is not listed by the State Fire Marshal prior to the law, can they maintain it or does it have to be replaced?
11. Where does one obtain a copy of a California State Fire Marshal (CSFM) listing of CO device?
12. Where can I go to receive further information on Carbon Monoxide?
13. Who can we contact at CAL-FIRE/CSFM for additional information?