SET THE TONE With The Only Truly Digital MP3 Doorbell...

The Tommyknocker is a USB, all digital doorbell. MP3 sound files may be uploaded to the Tommyknocker USB memory stick via a computer.

 Quick Links  
Download Free "Rare Music Tracks from Stonecold" 
Download Tommyknocker User Guide

Wiring Diagram 6 Wire
Wiring Diagram 7 Wire

FAQ - Two Wire doorbell systems &  Lighted Doorbell switches

Contact Us


Phone: 973-886-7560
Predominance, LLC
270 Sparta Ave Suite 104
Sparta, NJ 07871

E-mail: sales@tommyknockerdoorbell.com
E-mail: Support

 

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About Us

Predominance, LLC was formed in 2009 as a holding company for technologies developed over the years for use in both residential and commercial markets. More..


Contact Us

Phone: 973-886-7560
Predominance, LLC
270 Sparta Ave Suite 104
Sparta, NJ 07871

E-mail: sales@tommyknockerdoorbell.com
E-mail: Support

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