CO Detector Alarm at 1446 21st Avenue

10/10/2025 05:57 PM

Source: San Francisco City Fire and EMS

1446 21st Ave, San Francisco, CA 94122, USA

Summary: A building alarm was reported at 1446 21st Avenue, San Francisco, with initial dispatch to multiple fire units. Upon arrival, crews investigated and determined the alarm was triggered by a carbon monoxide (CO) detector on the second floor. All readings were normal, and no hazardous condition was found. The incident was canceled and units returned to service.

10/10/2025 06:13 PM
Incident Canceled and Units Cleared
00:10
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10/10/2025 06:13 PM
Investigation and Incident Resolution
00:11
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10/10/2025 05:59 PM
Units Arrive On Scene
00:06
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10/10/2025 05:57 PM
Alarm Reported and Units Dispatched
00:11
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CO Detector Alarm at 1446 21st Avenue, san francisco | OurBlock