This video applies to the models HLAC150 and HLAC151. The steps to set up both models are exactly the same. The only difference is that the HLAC151 also has audible voice instructions telling you what to do at each step.

This is how it’s done:

  • Read the Quick Start Guide
  • Install the batteries
  • “TEST” will start flashing
  • Plug the HLAC in to a wall outlet near your bedside
  • Press the red button on the back
  • “TEST” will stop flashing
  • Wait until “TEST” is flashing again
  • Press the test button on your smoke alarm
  • When the HLAC starts sounding its alarm, press the red button
  • Set the clock

Finished! Use the On/Off button on top to activate or deactivate the daily wake-up alarm.

Read through the manual to find out more about setting and using the wake-up alarm, the low battery and bed shaker error signals, and how to test your HLAC with your smoke alarms on a regular basis.


HLAC Features:

  • Uses the alarms proven in research sponsored by the US Fire Administration as most effective for waking people
  • Works with your existing working smoke alarms – no installation, no wiring required (note: the Lifetone HLAC is not a replacement for your current smoke alarm, but rather works in conjunction with it)
  • Needs nothing but a power outlet; plug it in, run it through a quick test to prove it detects your your smoke alarms, and it’s instantly on duty
  • Backup batteries last 7 days or more while still providing full-power emergency alarm signals. Uses common D-cell alkaline batteries for backup (included).
  • Big, easy-to-read time display with three brightness levels. It also alerts you if batteries are low or the bed shaker is disconnected, and a power icon flashes during power outages.

  • Powerful water resistant bed shaker is included, but its use is optional. The shaker is monitored (supervised), with audio and visual alerts if unintentionally disconnected or damaged.
  • The HLAC is also your daily alarm clock with a 520Hz audible alarm and bed shaker to awaken you in the morning. (the wake-up alarm has a different signal pattern than the emergency alarm)
  • Dimensions: 8 1/2″ L x 5″ W x 4″ H
  • The only 520 Hz Fire Safety Alarm and Bed Shaker listed by UL to UL 217, cUL S531, and UL 1971, and listed by UL as a low frequency sounder. The HLAC is NFPA 72 (2010-2013) Compliant. For use with residential smoke alarms or commercial notification appliances in the US and Canada.
  • Comes with a 2 Year Warranty and friendly customer service and technical support (800-648­-7923)