self-switching machine
nounUK /ˌsɛlf ˈswɪtʃɪŋ məˈʃiːn/
US /ˌsɛlf ˈswɪtʃɪŋ məˈʃin/
A machine that can turn itself on or off without a person doing it.
The self-switching machine turned off when the room got too hot.
RELATED WORDS
OTHER MEANINGS
2. A device that changes its own settings or mode by itself.
The self-switching machine changed to quiet mode at night.
3. A system that moves between power sources on its own.
The self-switching machine used solar power when the battery ran low.
4. A toy or gadget that flips itself between two states.
My little robot is a self-switching machine that blinks red and green.