Place it near the end of a kitchen fail edit, just after the burnt food is revealed, so the alarm becomes the payoff. Follow it with the censor beep for an awkward pause, or lead into it with the door knocking sound when someone arrives to investigate the smell.
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This clip is a sharp, high-pitched smoke detector beep repeated at steady intervals for about ten seconds, with the thin electronic tone of a household alarm. It feels instantly alerting and slightly stressful, like a warning that will not stop until someone acts, which makes it useful for comedy as well as for showing what a real low-battery chirp sounds like.