How does the Lifetone HL Bedside Fire Alarm and Clock work?
Using a patented sensor, the Lifetone HL Bedside Fire Alarm and Clock continuously monitors the environment for conventional smoke alarms that use the international evacuation T-3 pattern. Link to the T-3 definition. When the Lifetone HL Bedside Fire Alarm and Clock recognizes the T-3 pattern from a smoke alarm, it activates a 520 Hz square-wave sound alarm, using the international evacuation T-3 pattern (link to hearing test). This alarm uses low and multiple frequencies to awaken individuals with significant moderate to high frequency hearing loss, children and heavy sleepers in a fire emergency. It also performs as an everyday alarm clock using the 520 Hz square-wave sound pattern. For a diagram of how the Lifetone HL Bedside Fire Alarm and Clock works see our product page.
