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Doorknock 400


The new and improved Doorknock signaler can now be used as a security device! When someone touches the door knob, the signaler will flash! It can be used in one-room apartments, dorms, offices, hotels... anywhere. Its size makes it great for travel. The light flashes when someone knocks at the door. Use it as a flashlight too.

  • Door chime or door alarm (105 dB)
  • Flashlight with ultra bright LED
  • Double sensor: vibration sensor when hanging over the top of the door (bracket included), and electrostatic sensor when hanging on the door knob.
  • HIGH/LOW sensitivity selector
  • ALARM/OFF/CHIME switch
  • Battery low indicator
  • Operates with 3 AA batteries (not included)
  • 6V DC power jack (AC adapter sold separately)

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Precise Hearing's trained specialists are happy to assist you in choosing the right hearing aid solution for your unique loss. They can also:

  • Help determine how to read your hearing test
  • Help you find the tubes, domes, and other accessories that fit your current hearing aids
  • Offer support for hearing aids and/or accessories that you have already purchased through Precise Hearing

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Support: 1-877-704-4424
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info [at] precisehearing [dot] com

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