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Serene Innovations CentralAlert CA-AX Audio Alarm Sensor

(1 review) Write a Review
Was: $45.95
Now: $39.95
Usually Ships in 1 business day. Express Shipping available.

Product Overview

The CA-AX Audio Alarm Sensor sends to the CentralAlert™ receiver to notify you when existing smoke and carbon monoxide alarms are activated. Requires compatible receiver sold separately.

The Audio Alarm Sensor is part of the CentralAlert Notification System by Serene Innovations. It sends to the CentralAlert receiver to notify you when audio devices such as smoke/fire or carbon monoxide alarms are activated. It also works with newer T3/T4 alarms. It can be installed next to the audio sources or directly connected.


  • Mount next to audio alarms for alarm detection or hardwired to alarms that have connecting terminals for direct activation
  • Sends a wireless signal to the CA360 receiver (Sold separately)
  • 2.4GHz Smart-Code technology
  • Up to 200 ft operating range
  • Supports up to 10 CA-AX audio alarm sensors
  • Low battery indicator
  • 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.

[Click for user manual]


Warranty One year limited warranty
Brand Serene Innovations
Product Type Signaler
Signaler Type Sound, Smoke/Fire, Carbon Monoxide
Signaler Style Wireless
Signaler Alert Type None built-in
Lamp Plugin No
UPC 804879180548


(1 review) Write a Review

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  • 4
    Audio Alarm Sensor

    Posted by CHETUEN SIU on Apr 3rd 2023

    It works. It takes some time to have the alarm in the central unit activated when there is a fire alarm in testing.