A round Kidde wire‑free smoke alarm mounted on a white ceiling, showing a green LED and ventilation slots; raised concentric casing and printed instructions surround the central test/hush button.
DETECT

Smoke Alarm, Wire-Free Interconnect, AA Battery Powered

20SDR-VRF

This alarm offers cutting edge technology that sends fast alerts to give your family more time to get out safely and enhanced sensing technology reduces false alarms often caused by cooking. Plus, never miss an emergency alert from interconnected alarms — when one sounds, all compatible alarms do.1

  • Wire-Free Interconnect: When one alarm sounds, all compatible alarms do,1 helping you get out faster and without the cost or hassle of rewiring.

  • Low-Cost Solution for Renovations: Helps meet code2 for renovations, plus simple twist-and-click installation means no wiring needed.

  • Voice Alerts: Clear voice alerts tell you why the alarm is sounding.

Helpful Resources

Discover the Advantages

Take a closer look at this advanced smoke alarm and learn how it can help protect your family.

Smoke alarm mounted on a ceiling shows a steady green LED; company logo and "wire-free interconnect" promotional text appear to the left on a minimal white background.Play button

Key Benefits

  • A split image of two smoke alarms going off in two different rooms, with a dotted line connecting them.

    Wire-free Interconnect

    When one compatible alarm sounds, they all do.1

  • Alarm with voice alerts in speech bubbles, including "Fire!" and "Replace Alarm".

    Voice Alerts

    Clear voice alerts say why 
the alarm is sounding.

  • A woman opens an oven with a burnt food inside.

    Reduced Nuisance Alarms​

    Fewer false alarms often caused by cooking.

Product Features

Battery with Wire-Free Compatibility

Battery alarms with wire-free interconnect communicate wirelessly. All alarms need to have the wire-free feature to ensure proper connection.

Battery + Wire-Free Interconnect

Ideal for rentals, older homes and finished spaces, these battery powered alarms link wirelessly without the need for hardwiring.*

Complete Home Smoke Detection

Wire-free connectivity creates a fully interconnected fire safety system with up to 12 compatible alarms.*

Power Outages Are No Problem

Replaceable AA batteries keep your alarm working.

Notifications

Alarm will beep, blink red and announce “Fire!” in a voice alert.

Comprehensive Solutions

Help protect your home with Kidde's full range of safety products.

Helpful Resources

Find the information you need to understand your alarm 
and install it with confidence.

Download iconProduct Data Sheet
Download iconUser Guide
Download iconCompatibility Guide
Download iconCaring for Alarms
Download iconUnderstanding Kidde Alarms
Download iconETL Certification
Download iconSmoke ETL Certification
Video ThumbnailPlay button

Frequently Asked Questions

A red fire extinguisher and three Kidde smoke/CO detectors (one boxed) stand arranged on a light wood tabletop against a pale wall, accompanied by a round "#1" safety-brand badge.

Why Kidde

As North America's #1 home fire safety brand,* Kidde has been working to help make your home the safest it can be for more than 100 years. Now, our latest smoke alarms and combination smoke + carbon monoxide (CO) alarms are bringing you the next level of fire and CO safety. Help protect what matters most in your life with features like cutting edge technology that send fast alerts to give your family more time to get out safely. And enhanced sensing technology that reduces false alarms often caused by cooking.

*Based on total household installations as of December 2023.

* Based on total household installations as of December 2023.


1 Different models offer different interconnection options and requirements. Check the User Guide for more info.


2 In accordance with NFPA 72.