Product description

Purpose and coverage
This Kidde unit detects both smoke and carbon monoxide in one compact round alarm, so you don’t need separate devices for the two most common household airborne dangers. It supports standard hardwired installation while including AA batteries for backup power so the alarm remains operational during outages.

What’s in the box and build
The package includes the combined smoke/CO detector, a mounting base designed to match typical hardwired alarm cutouts, a hardwire adapter harness, and printed setup instructions. The housing is made from durable, flame‑resistant plastic with a low‑profile, circular form intended to fit standard alarm mounting locations.

Size and installation
The alarm retains a standard round footprint and is intended to replace most existing hardwired alarms without extensive rewiring. Installation requires connecting the provided adapter harness to the home hardwire and attaching the unit to its mounting base; AA batteries install for backup. The unit supports wireless interconnect so multiple compatible alarms in the home can sound together.

Smart features and connectivity
This model communicates with the Ring app to send real‑time push notifications for smoke, carbon monoxide, and low battery events, whether you’re home or away. One Wi‑Fi‑capable Kidde alarm can link a network of hardwired Kidde alarms to the Ring system, expanding mobile alerts across the whole house. It also supports voice alerts from the alarm itself and can relay notifications through compatible Alexa devices.

Performance and nuisance reduction
Kidde reports faster smoke sensing compared with a leading competitor based on internal testing, and the unit uses enhanced sensing algorithms designed to cut down on false alarms caused by cooking and other benign conditions compared with prior Kidde generations.

Certification and subscription options
The detector is tested to applicable UL 217 and FCC standards. Optional 24/7 professional monitoring through Ring is available for users who want continuous off‑site emergency monitoring; app notifications and local alarm functions do not require a subscription.

Pros

Combined smoke and CO sensing in one device
Hardwired power with AA backup for outages
Ring and Alexa notifications for remote alerts

Cons

Dust can trigger persistent ‘clean’ alerts on some units
Mixing with older alarm types may complicate interconnect
Optional monitoring requires a separate subscription

VerdictA practical modern replacement for legacy alarms, this Kidde model combines dual hazard sensing (smoke + CO), hardwired reliability with battery backup, and smart notifications through the Ring ecosystem. It reduces nuisance alarms compared with older Kidde generations and offers faster smoke sensing, voice alerts, and whole‑home connectivity when integrated into an interlinked alarm network. Usef

Reviews

John 5/5

Smart safety upgrade with combined smoke & CO sensing

I appreciate getting both smoke and carbon monoxide protection in a single device. Hardwired power with AA backup adds reliability and the Ring link gives mobile alerts. The combination simplifies installation compared with running two separate alarms.
loudpedal 5/5

Better fit and setup after swapping older units

I replaced aging detectors and found this Kidde had a sturdier base and easier setup than some prior replacements. Wi‑Fi pairing was straightforward once the adapter was fitted, and the unit seats more securely on the mount.
technical-person 5/5

Works as a bridge for mixed hardwired networks

We added these to a home with other Kidde hardwired alarms to give Ring visibility. The Wi‑Fi unit relays alerts while other hardwired units share the interconnect; read the documentation to confirm compatibility in mixed setups.
Olivia Silva 5/5

Reliable, straightforward, and brings peace of mind

Installation was simple, voice alerts are clear, and phone notifications give me confidence when I’m away. Overall a convenient safety upgrade for a Ring‑focused home.
Jason 4/5

Received units with earlier manufacture dates — check the label

My detectors were made over a year earlier, which reduces their usable life under the typical 10‑year guideline. Installation and app setup were easy, and the package included one month of Ring monitoring.
ACH of MA 5/5

Easy install and reliable after a month

Installed five of these and linked them to the Ring app. Setup was simple and after 30 days I’ve seen no false alarms. The app identifies which unit activated, which is very helpful in a multi‑alarm setup.
Stan 1/5

Annoying frequent 'clean the alarm' voice warnings

These work well otherwise, but tiny dust specs trigger an audible 'clean the alarm' message that won’t silence. Blowing it out and resetting gets rid of it, but that can set off the hardwired network and wake the house.
P. Dankers 5/5

Hardwired Ring units are what I wanted

I like having a hardwired alarm that still offers AA backup. Combining smoke and CO into one device saves time and naming clutter in the app. I’m eager to see long‑term battery life.