How much carbon monoxide needs to be detected before the alarm will sound? — Kidde Help Center

How much carbon monoxide needs to be detected before the alarm will sound?

Last Updated: 586d

Carbon Monoxide Alarm Response Times:

At 70 ppm, alarm within 60-240 min.
At 150 ppm, alarm within 10-50 min.
At 400 ppm, alarm within 4-15 min.