timedrelay
nounUK /ˈtaɪmd ˌriːleɪ/
US /ˈtaɪmd ˌriːleɪ/
A timed relay is a switch that turns things on or off after a set amount of time.
The timed relay turned off the garden lights after ten minutes.
RELATED WORDS
OTHER MEANINGS
2. A race in which each team member runs or swims one part and the total time decides the winner.
Our team won the timed relay at the school sports day.
3. A scheduled handoff of a message or signal that happens at a set moment.
The satellite sent a timed relay of data back to Earth.
4. A device that passes a signal along only after a fixed pause.
The engineer installed a timed relay to delay the alarm by five seconds.