Aeotec Water Leak Sensor vs Fibaro Flood Sensor (Z-Wave) comparison

Updated July 2026

Data from Amazon and official Aeotec and Fibaro sites.

2026 verdict

For a Z-Wave home that wants everything on the device, the Fibaro Flood Sensor (Z-Wave) wins this water leak sensor comparison. It carries more onboard hardware than the Aeotec, adding a tilt/tamper sensor plus an on-device alert sound and light, and it lasts longer on a 2-year CR123A battery, all while matching the Aeotec on water, temperature, and freeze alerts. The Aeotec Water Leak Sensor still makes a solid case: it is the more affordable, better-rated unit with a broader integration list (SmartThings and Home Assistant over Zigbee), and it counts weather resistance as a win over the unrated Fibaro. Both are hub-dependent sensors. Buy the Fibaro Flood Sensor (Z-Wave) if you run a Z-Wave controller or Home Assistant and want a local siren, tamper alerts, and longer battery life; choose the Aeotec Water Leak Sensor for a cheaper, higher-rated Zigbee sensor that ties into SmartThings and Home Assistant.

Feature	Aeotec Water Leak Sensor	Fibaro Flood Sensor (Z-Wave)	Winner
Price	$39.99	$66.12	Aeotec Water Leak Sensor
Rating	4.5	4.3	Aeotec Water Leak Sensor
Weather Resistance	IP20	NO	Aeotec Water Leak Sensor
Battery Life	1 year	2 years	Fibaro Flood Sensor (Z-Wave)
Integrations	Samsung SmartThings, Home Assistant	Home Assistant	Aeotec Water Leak Sensor
Sensors	Water Leak, Temperature	Water Leak, Temperature, Tilt	Fibaro Flood Sensor (Z-Wave)
Alerts	Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts	Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Tamper Alerts	Fibaro Flood Sensor (Z-Wave)
On Device Alert Sound	NO	YES	Fibaro Flood Sensor (Z-Wave)
On Device Alert Light	NO	YES	Fibaro Flood Sensor (Z-Wave)
Warranty	1 year	1 year	Tie
Connectivity	Zigbee	Z-Wave	Tie

Aeotec

Aeotec Water Leak Sensor

$39.99

Buy on Amazon USA

+ Price: $39.99
+ Rating: 4.5
+ Weather Resistance: IP20
- Battery Life: 1 year vs 2 years
- Sensors: Water Leak, Temperature vs Water Leak, Temperature, Tilt

Winner

Fibaro

Fibaro Flood Sensor (Z-Wave)

16% OFF

$66.12

$78.53

Buy on Amazon USA

+ Battery Life: 2 years
+ Sensors: Water Leak, Temperature, Tilt
+ Alerts: Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Tamper Alerts
- Price: $66.12 vs $39.99
- Rating: 4.3 vs 4.5

Frequently Asked Questions

Which is better overall: Aeotec Water Leak Sensor or Fibaro Flood Sensor (Z-Wave)?

The Fibaro Flood Sensor (Z-Wave) wins overall with added tilt/tamper sensing, an onboard alarm sound and light, and a longer 2-year battery. The Aeotec Water Leak Sensor counters on price, owner rating, and its Zigbee integrations.

What is the biggest difference between the Fibaro Flood Sensor (Z-Wave) and the Aeotec Water Leak Sensor?

Radio and onboard alerting. The Fibaro Flood Sensor (Z-Wave) uses Z-Wave and adds a local siren, light, and tamper sensor, while the Aeotec Water Leak Sensor is a Zigbee device with no on-device alarm, built for SmartThings and Home Assistant.

Which sensor has a local alarm and tamper detection?

The Fibaro Flood Sensor (Z-Wave) has both an on-device alert sound and light plus tamper alerts via its tilt sensor. The Aeotec Water Leak Sensor has none of these and relies on the hub for notifications.

Which lasts longer on a battery?

The Fibaro Flood Sensor (Z-Wave) does, rated at about 2 years on a CR123A, versus roughly 1 year on the CR2 cell in the Aeotec Water Leak Sensor.

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

Buy it if you already run a Z-Wave controller or Home Assistant and want a compact sensor with a local siren and light, tamper alerts, and a 2-year battery.

Who should buy the Aeotec Water Leak Sensor?

Choose it if you prefer a cheaper, better-rated Zigbee sensor for SmartThings or Home Assistant, with temperature and freeze alerts built in.

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