They run off batteries, using either isotope decay or light sensor (or both)
I actually have one hanging off my ceiling right now, it’s battery was fine, but it tripped likely due to dust or a spider on the optical sensor. It went off at 2am, network sent them all off, took me 10m to find the right one I wasn’t about to just blow it out and out put it back on the ceiling :)
Depends on model. Almost all older ones does (using radiation from the isotope to electrically charge smoke particles that pass through, which then can be detected by a sensor).
The A-241 does not charge the particles, it ionizes the air in a small chamber that allows a steady current. Any smoke particles disrupt these currents to set off the alarm.
Don’t these things run off of decaying isotopes? I don’t think you can fix that
If I could turn back time, if I could find a way
I’d take back those words that have hurt you
They run off batteries, using either isotope decay or light sensor (or both)
I actually have one hanging off my ceiling right now, it’s battery was fine, but it tripped likely due to dust or a spider on the optical sensor. It went off at 2am, network sent them all off, took me 10m to find the right one I wasn’t about to just blow it out and out put it back on the ceiling :)
where there’s a will there’s a way
“Jerry, we have thousands of warheads full of plutonium”
Depends on model. Almost all older ones does (using radiation from the isotope to electrically charge smoke particles that pass through, which then can be detected by a sensor).
Many newer ones are optical.
The A-241 does not charge the particles, it ionizes the air in a small chamber that allows a steady current. Any smoke particles disrupt these currents to set off the alarm.