How to say detector in Korean

Meaning

A detector (감지기) is a small device that finds or notices something. In everyday life, it often checks for smoke, gas, heat, or movement. You can see one on a ceiling, wall, or near a door to help keep people safe.

Example sentences

1. 천장에 감지기가 있어요.

   There is a detector on the ceiling.

2. 문 옆 감지기가 켜졌어요.

   The detector by the door turned on.

3. 감지기가 울리고 있어요.

   The detector is going off.

4. 학교 복도에 감지기가 있어요.

   There is a detector in the school hallway.