Who makes wireless (interconnected), battery operated, dual...
I can find various permutations of these criteria but nothing that matches all. Any ideas? Thanks
View ArticleFire alarm with LED read-out?
Last night, at 1am, everyone in the house was woken up by the loud beep of our networked fire alarms. A single beep means something different from a short sequence of 2 or 3 beeps (which is different...
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