noun
timing device; timer
A device that controls timing, such as a timer, time switch, or time-delay mechanism. Used in technical and everyday contexts.
この時限装置は、設定した時間が来ると自動で電源を切ります。
This timing device automatically turns off the power when the set time arrives.
爆弾に時限装置が取り付けられていた。
A timing device was attached to the bomb.