火災報知器(かさいほうちき)

かさいほうちき
noun
fire alarm, fire detector
1. fire alarm, fire detector
A device that detects fire or smoke and sounds an alarm. Required by law in residential buildings in Japan.
火災報知器(かさいほうちき)が鳴(な)った。
The fire alarm went off.
各部屋(かくへや)に火災報知器(かさいほうちき)を設置(せっち)する。
Install fire detectors in each room.
火災報知器(かさいほうちき)が鳴(な)ったら、落(お)ち着(つ)いて避難(ひなん)してください。
If the fire alarm goes off, please evacuate calmly.

A device that detects fire or smoke and triggers an alarm. In Japan, residential installation has been mandatory since 2011.

WORD FORMATION:
火災(かさい) (fire/conflagration) + 報知(ほうち) (notification) + 器(き) (device)

COMMON COLLOCATIONS:

  • 火災報知器(かさいほうちき)が鳴(な)る: fire alarm sounds
  • 火災報知器(かさいほうちき)を設置(せっち)する: install a fire alarm
  • 火災報知器(かさいほうちき)の点検(てんけん): fire alarm inspection
  • 火災報知器(かさいほうちき)の電池(でんち)交換(こうかん): battery replacement for fire alarm

TYPES:

  • 煙(けむり)感知器(かんちき): smoke detector
  • 熱(ねつ)感知器(かんちき): heat detector

Also called 火災(かさい)報知機(ほうちき) (with 機(き) instead of 器(き)); both kanji are used.

general
Added 2026.2.17 10:54 · Revised 2026.3.25 21:24
11500/11510_kasaihouchiki