How to say "buzzer" in Japanese

• ブザーJLPT N1approx.Common
  nounThe buzzing device itself, as on a quiz show or at a door; also a personal alarm carried to attract attention in case of attack. The common word for these senses.
  社長しゃちょうはブザーで秘書ひしょを呼よんだ。↗

  The boss buzzed his secretary.
• 呼び鈴よびりん
  nounA bell rung to summon or signal someone, as at a door; its 'buzzer' sense covers only a buzzer serving that purpose. A less common word, seldom the one you want for buzzers generally.
  食事しょくじの最中さいちゅうに呼び鈴よびりんが鳴なった。↗

  The doorbell rang during the meal.

Use 「ブザー」 for a buzzing device itself, including personal alarms meant to attract attention in case of attack; 「呼び鈴」 is a bell for summoning or signalling someone, and its 'buzzer' sense covers only a summoning buzzer.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• ブザーbuzzer
• 呼び鈴よびりんbell (used for summoning or signalling)