Old-fashioned smoke detectors and gas sensors have served as a fine warning system for a long time. Smart smoke detectors and Internet of Things (IoT) gas sensors go a step further, as they can send an alert to your smartphone if they sense something amiss. Check out this list for recommendations!
Nest Protect is the smoke alarm other alarms look up to. With an industrial-grade smoke sensor, automatic self testing, it's the first home alarm you can hush from your phone without any extra hardware.
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