timed power-off tool
nounUK /taɪmd ˈpaʊər ɒf tuːl/
US /taɪmd ˈpaʊər ɔf tul/
A tool that turns itself off after a set amount of time.
The timed power-off tool switched off the heater after thirty minutes.
OTHER MEANINGS
2. A software utility that closes a computer automatically at a chosen time.
He used a timed power-off tool to shut down the lab computers at midnight.
3. A feature on a device that cuts electricity after a countdown ends.
The iron's timed power-off tool keeps the house safe when forgotten.
4. A plug-in gadget that stops power to whatever is connected after a set period.
She plugged the fan into a timed power-off tool to save electricity overnight.