Household independent smoke alarm used long after the change of the new

Domestic independent smoke alarms can protect family members from fire damage, but independent smoke alarms are electronic products, use for a long time after the performance will decline, fire perceptual ability will decline, so need to change a new alarm timely.

Some people may have doubts, household independent smoke alarm not only when the smoke to work, so its service life should be very long for, almost no change. This view is wrong, the smoke alarm in 24 hours at work, the smoke concentration and it never stops testing room. For example, ion type household smoke alarm which can loop 1750000 times, theoretical service life up to 5 years, photoelectric smoke detectors are similar, independent. But not necessarily used for 5 years after the change, because of the different environmental conditions also affect the service life of the smoke alarm, so as to regularly to check the home alarm, performance decline, on the timely replacement of the alarm, after all, a household independent smoke alarm, the price is not high, earlier change also makes more sense of security family.