Because I’ve read that in-home smoke detectors should be ... after you turn off power at the circuit-breaker panel.) For the ...

By cleverly patching into the test button on an old smoke detector he created a circuit-trip alarm. One side of each piece of wire is secured to the frame and jam of a window. A paper clip ...

Which is why smoke detectors are so important. They are life saving devices that can wake people up sleeping inside, well before the silent, but deadly carbon monoxide starts to kick in.

Ions are tiny, electrically charged particles that flow through the circuit and between the two plates. When smoke enters the detector, it disrupts the flow of current and activates the alarm.