Watch Genius 520Hz Smoke Alarm

Friday, 07 November, 2025 | Supplied by: Watch Smoke Alarms


The Watch Genius 520Hz Smoke Alarm uses a 520 Hz square wave tone designed to wake older adults, the hearing-impaired, children, and alcohol-affected sleepers more effectively than standard alarms. Its features include wireless RF interconnectivity, photoelectric sensing and full Australian compliance.

Unlike the standard high-pitched beeping alarm, the 520 Hz square wave creates a ‘dissonant’ sound, meaning it has a mix of different tones instead of just one. This mix of tones is designed to spread across a range of frequencies that human ears are most sensitive to, making it harder to ignore or miss.

It has been used in commercial premises for more than 15 years, but is now available for homes.

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