What is the difference between a carbon monoxide alarm and a carbon monoxide detector?
A carbon monoxide alarm is a stand alone unit which is tested to Underwriters Laboratory (UL) Standard 2034 and has its own built-in power supply and audible device. These units are typically installed in your single family dwelling. A carbon monoxide detector is a system unit which is tested to UL Standard 2075 and is designed to be used with a fire alarm system and receives its power from the fire alarm panel.

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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?