The Best Z-Wave Smoke and CO Detectors

Smoke and CO alarms that report to your Z-Wave hub, ranked.

We pulled the Z-Wave smoke and carbon monoxide alarms on Amazon and scored them on rating, review volume, and features.

Updated Oct 10, 2026 · Amazon prices checked Oct 10, 2026

Our picks

Best Overall

First Alert

First Alert 10-Year Battery Smoke & CO Alarm (Z-Wave Plus)

3.5 (270)

A Z-Wave Plus smoke and CO alarm with a 10-year sealed battery, sold by Amazon.

$64.98

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Best for Wired Alarms

Zooz

Zooz ZEN55 DC Signal Sensor (800 Series LR)

4.9 (60)

Adds Z-Wave Long Range alerts to the hardwired, interconnected alarms you already have.

$44.95

View on Amazon →

Side-by-side

Works with

Swipe the table sideways to see every column.

#	Alarm	Price	Rating	Reviews	Works with	Type	Power	Detects	Score
1	Zooz ZEN55 DC Signal Sensor (800 Series LR)	$44.95	4.9	60		Add-on for wired alarms	Wired	Whatever your alarms detect	81
2	First Alert 10-Year Battery Smoke & CO Alarm (Z-Wave Plus)	$64.98	3.5	270		Standalone alarm	10-year sealed battery	Smoke and CO	71

Works with: hover or tap an icon for the system name. A system is shown when it supports the product directly or through the hub the listing requires. Both work with any Z-Wave hub. The First Alert alarm also works with Ring Alarm.

The full ranking

Scored out of 100: 45% customer rating, 30% review volume, 25% features. How we rank

Best for Wired Alarms

Zooz

Zooz 800 Series Z-Wave Long Range DC Signal Sensor ZEN55 | for Use with Analog Smoke & CO Detectors Only | Z-Wave Hub Required (Sold Separately)

4.9 60 reviews

Score 81/100

$44.95

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100+ bought in past month

Wires into one interconnected alarm so the whole system reports to your hub.

Type: Add-on for wired alarms
Power: Wired
Detects: Whatever your alarms detect
Extras: 120 V relay, Z-Wave Long Range

Pros

4.9 stars
Z-Wave Long Range
5-year warranty when registered

Cons

Analog interconnected alarms only
Needs wiring
Only 60 reviews

Best Overall

First Alert

First Alert 10-Year Battery Combination Smoke & Carbon Monoxide Alarm

3.5 270 reviews

Score 71/100

$64.98

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1K+ bought in past month

Replaces a ceiling alarm and reports smoke and CO to your hub.

Type: Standalone alarm
Power: 10-year sealed battery
Detects: Smoke and CO
Extras: Works with Ring Alarm

Pros

Smoke and CO in one
No battery changes for 10 years
1K+ bought in the past month

Cons

3.5 stars
Not interconnected with wired alarms
$64.98

Buyer's guide

Why a smart smoke detector on a hub?

Your hub can alert your phone, flash lights, unlock doors, or shut off HVAC when the alarm sounds, even when nobody is home.

Do they replace hardwired interconnected alarms?

Battery smart alarms add alerts, but if your home has hardwired interconnected alarms, code may require keeping them. Some smart models are hardwired replacements.

Smoke and CO in one?

Combination alarms detect both, which saves ceiling space. Install CO alarms near bedrooms and on every level.

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Smoke and CO detectors on other protocols

Compare all smart smoke and co detectors on one page →Wi-Fi smoke and CO detectors →Matter smoke and CO alarms →