Product Demonstration Video
How does the Lifetone HL™ Bedside Fire Alarm and Clock Work?
- Uses 520 Hz square-wave sound pattern – a lower frequency than standard smoke alarms
- Hears your existing T3 smoke alarms. No new alarms are required
- Battery backup lasts 7 days or more while still providing emergency alarm signals
- Alerts to AC power loss and low or no battery
- Functions as a standard alarm clock
- Includes a bed shaker
- Alerts to unplugged or improperly connected bed shaker
- Two year limited warranty
- The HL fits anywhere, measuring 8 1/2” L x 5” W x 4” H
- Lifetone HL™ and bed shaker are UL Listed
Why Square-wave Technology is Better
The Lifetone HL 520 Hz square-wave sound:
- Is a low-frequency pattern of multiple tones
- Breaks through sleep more effectively than high-frequency (3000 Hz) smoke alarms
- Is more audible to a wider range of people
Research shows 95% of respondents with hearing loss woke to the square-wave alarm an improvement of 39 percentage points versus current smoke alarms.