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  • Visit Us: 8400 Menaul Blvd, Suite F, Albuquerque, NM 87112

Serene Innovations CentralAlert Notification System CA-DX Doorbell / Door Knock Sensor

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Serene Innovations

 Product Description

The wireless Doorbell/Door Knock and Door Chime Sensor is part of the CentralAlert Notification System by Serene Innovations. Simply install the CA-DX sensor on the existing door chime or intercom door announcer for vibration detection. When someone rings your doorbell, the CA-DX sensor unit detects the vibration and sends a wireless signal to trigger the CA-360 clock/receiver unit. (An electrical signal from your doorbell activates the CA-DX). Alternatively, the CA-DX sensor can be attached to the inside surface of your door to detect door knocks. The CA-DX has a 2.5mm jack for optional direct connection to an existing doorbell/door chime (no cord included).

To see how to register (learn") the CA-DX doorbell/door knock sensor with the CA-360 clock/receiver, see the video below:


  • Detects vibrations of existing doorbell, door chimes, door intercom announcer or knocking and sends a signal to the CA360 unit
  • Easy to install with adjustable sensitivity to avoid false alarms
  • 2.5mm jack for optional connection to existing doorbell/door chime (cord not included)
  • 2.4GHz operating frequency
  • Up to 200 ft operating range
  • Uses 2 AA alkaline batteries (not included)
  • Dimensions: 2.5" x 3.8" x 1"

What else do I need to make this work?

In order to be notified, you will need to purchase a compatible receiver (see Accessories box).

 Warranty Information

One year limited warranty

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Contact Us

  • Call Us: (505)299-7777 / (877)287-0608
  • Visit Us: 8400 Menaul Blvd, Suite F
  • Albuquerque, NM 87112
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