Name: Advanced Infrasonic Home Alarm


This advanced infrasonic home alarm has many more features than HA-500. The high power external siren has a backup battery. It can plug-in to the main module. Detected area up to 4,000 sq. ft.

  • Remote arm/disarm
  • Remote panic
  • User sensitivity adjustment
  • System disable by switch
  • Beep /alarm selectable
  • Delay /instant alarm selectable
  • LED indicator for battery
  • Built-in backup battery
  • Operated by house wire
  • 500,000 secret codes, Copyright © 2022 KEYSTONE ELECLTRONICS CO. LTD. All rights reserved.