Effective device for deep sleep and hearing impaired. A recent study by the Fire Protection Foundation found that typical smoke alarms failed to wake up more than half of study participants with hearing loss. The high pitched signal used by most smoke alarms failed to awaken 43%! A pillow vibrator woke about 80% while a strobe light woke only 27%!The most effective signal was a loud and low pitched . It woke up more than 92% of the participants.
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Battery Operated, low frequency smoke alarm
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Operates at 520 Hz frequency
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Sound Output : 87dB
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6" internal speaker - audio amplifier & large speakers for extra power
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Uses 6 AA batteries (not included)
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9 watt amplifier
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Low battery alert
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Dimensions: 6.5 "x 8 x 2"
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Meets NFPA 72 National Fire Alarm Code sound decibel levels
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No programing or wiring required: Ready out of the box
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Three year warranty
