Fibaro Flood Sensor (Z-Wave) vs Kidde WiFi Water Leak & Freeze Detector

Updated September 2026

Data from Amazon and official Fibaro and Kidde sites.

2026 verdict

Z-Wave homes that want tilt sensing should start with the Fibaro Flood Sensor (Z-Wave) rather than the Kidde WiFi Water Leak & Freeze Detector.

Winner

Fibaro Flood Sensor (Z-Wave)

$66.12$78.5316% OFF

Buy on Amazon USA

Fibaro wins on owner reviews, a broader sensor set (water, temperature and tilt), and an on-device alert light, with tamper alerts, optional wired backup, and a 2-year CR123A cell inside a Z-Wave or Home Assistant hub. The Kidde WiFi Water Leak & Freeze Detector stays cheaper and reaches Alexa and Google Home over hub-free Wi-Fi, which this Fibaro never does. Choose the Fibaro Flood Sensor (Z-Wave) if a Z-Wave controller is already in place; pick the Kidde WiFi Water Leak & Freeze Detector when you want freeze-and-leak coverage without buying a hub.

Winner

Fibaro

Fibaro Flood Sensor (Z-Wave)

16% OFF

$66.12

$78.53

Buy on Amazon USA

Kidde

Kidde WiFi Water Leak & Freeze Detector

$18.43

Buy on Amazon USA

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Feature	Fibaro Flood Sensor (Z-Wave)	Kidde WiFi Water Leak & Freeze Detector	Winner
Price	$66.12	$18.43	Kidde WiFi Water Leak & Freeze Detector
Rating	4.3	4.0	Fibaro Flood Sensor (Z-Wave)
Integrations	Samsung SmartThings, Home Assistant	Google Home, Alexa, Home Assistant	Kidde WiFi Water Leak & Freeze Detector
Sensors	Water Leak, Temperature, Tilt	Water Leak, Temperature	Fibaro Flood Sensor (Z-Wave)
On Device Alert Light	YES	NO	Fibaro Flood Sensor (Z-Wave)
Warranty	1 year	1 year	Tie
Weather Resistance	NO	NO	Tie
Connectivity	Z-Wave	2.4 GHz WiFi	Tie
Alerts	Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Tamper Alerts	Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Low Battery Alerts	Tie
On Device Alert Sound	YES	YES	Tie

Winner

Fibaro

Fibaro Flood Sensor (Z-Wave)

16% OFF

$66.12

$78.53

Buy on Amazon USA

+ Rating: 4.3
+ Sensors: Water Leak, Temperature, Tilt
+ On Device Alert Light: YES
- Price: $66.12 vs $18.43
- Integrations: Samsung SmartThings, Home Assistant vs Google Home, Alexa, Home Assistant

Kidde

Kidde WiFi Water Leak & Freeze Detector

$18.43

Buy on Amazon USA

+ Price: $18.43
+ Integrations: Google Home, Alexa, Home Assistant
- Rating: 4.0 vs 4.3
- Sensors: Water Leak, Temperature vs Water Leak, Temperature, Tilt

Frequently Asked Questions

Which is better overall: the Fibaro Flood Sensor (Z-Wave) or the Kidde WiFi Water Leak & Freeze Detector?

The Fibaro Flood Sensor (Z-Wave) wins overall on reviews, sensing breadth, and an alert light, with tilt and tamper on top of leak and freeze. The Kidde WiFi Water Leak & Freeze Detector is the cheaper hub-free Wi-Fi alternative for Alexa and Google Home.

What is the biggest difference between the Fibaro Flood Sensor (Z-Wave) and the Kidde WiFi Water Leak & Freeze Detector?

Z-Wave hub versus standalone Wi-Fi. The Fibaro Flood Sensor (Z-Wave) needs a Z-Wave controller, adds tilt and tamper, and lights as well as sounds on the device. The Kidde WiFi Water Leak & Freeze Detector joins 2.4 GHz Wi-Fi on its own and talks to Alexa and Google Home instead of Z-Wave.

Do both sensors warn about freezing pipes?

Yes. Both the Fibaro Flood Sensor (Z-Wave) and the Kidde WiFi Water Leak & Freeze Detector include temperature sensing and freeze-temperature alerts alongside leak alerts.

Does the Fibaro Flood Sensor (Z-Wave) work with Alexa or Google Home?

Not natively. It supports Samsung SmartThings and Home Assistant through a Z-Wave hub, with no Alexa, Google Home, Apple HomeKit or Matter. The Kidde WiFi Water Leak & Freeze Detector supports Alexa, Google Home and Home Assistant, not SmartThings.

Who should buy the Fibaro Flood Sensor (Z-Wave)?

Z-Wave and Home Assistant households that want a compact leak, freeze, tilt and tamper puck with on-device sound and light, and who already have a compatible hub.

Who should buy the Kidde WiFi Water Leak & Freeze Detector?

Buyers who want the cheaper hub-free Wi-Fi puck with freeze alerts and Alexa or Google Home, without adding a Z-Wave controller.

Full comparison table

Compare all 32 Water Leak Sensors side by side

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