The SadoTech "CROSSPOINT" Expandable Wireless Multi-Unit Long Range Doorbell Alert System Learning Code "E" Series is a CONFIGURABLE and EXPANDABLE doorbell system that can EASILY ADD on 20+ more extra re...

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Product Review

The SadoTech "CROSSPOINT" Expandable Wireless Multi-Unit Long Range Doorbell Alert System Learning Code "E" Series is a CONFIGURABLE and EXPANDABLE doorbell system that can EASILY ADD on 20+ more extra receivers, transmitter buttons, motion sensors and door sensors. Designed & sold exclusively by SadoTech.

  • CONFIGURABLE and EXPANDABLE doorbell system. Add on or build your own system
  • EASILY ADD on any number of additional receivers, transmitters, motion sensors or door sensors
  • Long range operation with the receiver at over 500 feet
  • Look for "Crosspoint" for other compatible components
  • CE, FCC, RoHS certified.


  • ✅ EXPANDABLE DOORBELL SYSTEM LETS YOU DESIGN YOUR HOME-ALERT NETWORK with 20+ additional receivers, transmitters, and motion or door sensors. Custom build your own system that fits for your needs. Easy to use pair-able code technology allows you to mix and match Crosspoint components easily with one or multiple receivers.
  • ✅ ASSIGN UNIQUE RINGTONES to each transmitter to instantly know which one was triggered. Over 50 different melodies and ringtones make this the ideal wireless doorbell system for multi-entry structures. Four levels of adjustable volume from 25db to 110db.
  • ✅ OVER 500-FOOT LONG-RANGE OPERATION penetrates steel doors, exterior walls and interior walls. No new wiring required for implementation. SIMPLY PLUG RECEIVER INTO ELECTRICAL OUTLET (no batteries required for main receiver). Easy to install with included mounting hardware and basic tools
  • ✅ DOWNLOAD OUR "10 MORE WAYS TO USE SADOTECH DOORBELLS" GUIDE - Did you know that our customers use SadoTech doorbells to train dogs, teachers love using it to quiet down classrooms, seniors and disabled use SadoTech doorbells as assisted living call pagers, and more! SCROLL DOWN on this page to the Technical Specs section below and click the Application Guide link to DOWNLOAD the PDF file. Open it with Adobe Acrobat Reader.
  • ✅ WANT TO LISTEN TO OUR CHIMES/RINGTONES BEFORE YOU BUY? GO AHEAD - Just SCROLL DOWN to the Technical Specs section below and click on the Specification Guide link to DOWNLOAD the PDF file. Open it with Adobe Acrobat Reader to play all 52 ringtones. We are proud to announce we have developed a custom music chip in our doorbells that includes carefully selected. Over 50+ different ringtones. Operating range of over 500 ft (1000 ft in open area). 4 levels of adjustable volume from 25db - 110db.

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