Or false positives that desensitize you. Cry wolf too many times and people tune out. I got my parents a Nest smoke alarm (I can see the alarms too) but a year

Or false positives that desensitize you. Cry wolf too many times and people tune out. I got my parents a Nest smoke alarm (I can see the alarms too) but a year later it was being triggered by steam. The folks at Nest actually sent a free new model that's better at not triggering for steam. But I have to wonder if my elderly parents trust it anymore.