Do you think household smoke alarms that you have to change the battery will go the way of the cassette tape? I think ten year smoke alarms are better because it’s impossible for someone to disable it by removing the battery. A problem with smoke alarms is when a nuisance alarm occurs and someone removes the battery, and then doesn’t put the battery back. Yes, ten year smoke alarms are less interesting for collectors to collect, but the purpose of smoke alarms is to warn people of a fire, not to please collectors.
Yes, eventually. The state of California already requires that new homes be equipped with these.