by Ken Jorgustin, Modern Survival Blog:
Smoke detectors expire. Over time they lose sensitivity. The last thing you want is a weak smoke detector in your room while sleeping soundly at night.
Here’s what you need to know…
When it comes to survival, there are many tools which assist us. Many of them are technological and many others are not. Among the electronic devices which serve to warn us of danger, the smoke detector works largely unnoticed while on the ceiling or walls while it constantly and continuously measures the air around it – just waiting to alarm.
It works hours, days, weeks, months, years – never ending.
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