[ExI] transmitter smoke detector

[spike at rainier66.com]

-----Original Message-----
From: extropy-chat <extropy-chat-bounces at lists.extropy.org> On Behalf Of BillK via extropy-chat
> _______________________________________________

>...Search for smart smoke alarms - they send a message to your phone.
Or wireless interconnected smoke alarms - when one goes off, they all go off, range up to about 50 meters.

BillK

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Cool thanks BillK, found em.  It was just knowing what to search on: wireless interconnected smoke alarms.

They don't even cost much, excellent.

In our world today, any product you can easily imagine that would be useful, someone somewhere thought of it years ago and already built a factory somewhere to make those.

spike