Lifetone HL Bedside Fire Alarm and Clock
This system can save your life in a nighttime fire! The Lifetone HL Bedside Fire Alarm and Clock uses patented monitoring technology to actively listen for the sound of your smoke alarm (and ignore all other sounds at the same frequency, about 3100 Hz). When it hears your smoke alarm it immediately initiates three different signals to wake you up:
1. Loud 85dB Alarm Signal: that's like a lawn mower being started next to your bed.
2. Visual Signal: the back-lit display flashes with the word FIRE. In a darkened room, it's another form of sensory stimulation to "break through" the fogginess of sleep.
3. Vibration: the included bed shaker provides a strong vibration when the alarm is triggered, helping to wake even the deepest sleeper.