Awakens High Frequency Hearing Loss Individuals Best
Standard smoke alarms emit a pure tone signal at 3100 Hz, which is too high to wake many at-risk individuals including children, the elderly and deep sleepers. The Lifetone HL™ Bedside Fire Alarm and Clock’s 520 Hz square-wave signal generates multiple tones that are more audible and break through sleep more effectively than standard smoke alarms. And since the alarm clock sits at the bedside, the alarm signal from the clock is louder than it would be from smoke alarms that are mounted down the hall and in other rooms.
Square-wave Technology
Day or night, the sound-wave signal in the Lifetone HL™ Bedside Fire Alarm and Clock is proven in independent testing to be more audible to a wider range of people, including at-risk groups such as seniors, children and people with mild to moderately severe hearing loss.