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Water Leak Sensors · Head to head

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

Full Smart Water Leak Sensors comparison in 2026

Updated September 2026
Data from Amazon and official Aeotec and Fibaro sites.
2026 verdict
Phone alerts plus a siren and light on the unit itself make the Fibaro Flood Sensor (Z-Wave) the better choice over the Aeotec Water Leak Sensor for a hub-based home.
Fibaro Flood Sensor (Z-Wave)
Winner
Fibaro Flood Sensor (Z-Wave)
$61.36
Buy on Amazon USACheck price
It also adds tilt sensing and tamper alerts, runs about 2 years on a CR123A against about 1 year on a CR2, and can take optional wired power so the battery becomes a backup. Both measure temperature and send freeze alerts, and both work with SmartThings and Home Assistant only. The real split is the radio: the Aeotec Water Leak Sensor is Zigbee and the Fibaro Flood Sensor (Z-Wave) is Z-Wave, so your hub may make the choice for you. Pick the Fibaro Flood Sensor (Z-Wave) on a Z-Wave network that wants a local alarm, and the Aeotec Water Leak Sensor on a Zigbee network.
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FeatureAeotec Water Leak SensorFibaro Flood Sensor (Z-Wave)Winner
Price$39.99$61.36Aeotec Water Leak Sensor
Rating4.54.3Aeotec Water Leak Sensor
Battery Life1 year2 yearsFibaro Flood Sensor (Z-Wave)
SensorsWater Leak, TemperatureWater Leak, Temperature, TiltFibaro Flood Sensor (Z-Wave)
AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Tamper AlertsFibaro Flood Sensor (Z-Wave)
On Device Alert SoundNOYESFibaro Flood Sensor (Z-Wave)
On Device Alert LightNOYESFibaro Flood Sensor (Z-Wave)
Warranty1 year1 yearTie
ConnectivityZigbeeZ-WaveTie
IntegrationsSamsung SmartThings, Home AssistantSamsung SmartThings, Home AssistantTie

What the differences mean

Radio

The Aeotec Water Leak Sensor needs a Zigbee hub, the Fibaro Flood Sensor (Z-Wave) a Z-Wave hub. If your hub speaks only one of the two, that settles it.

Local alarm

The Fibaro sounds a siren and flashes a light when it gets wet. The Aeotec has neither, so every warning goes through the hub.

Tilt and tamper

The Fibaro Flood Sensor (Z-Wave) detects when it is moved or tipped and raises a tamper alert. The Aeotec Water Leak Sensor does not.

Power

About 2 years on a CR123A, with optional wired power, for the Fibaro. About 1 year on a CR2 for the Aeotec.

Which one to buy if

What owners say

Owners of both sensors say pairing is quick once the right hub is in place and value getting temperature and freeze warnings from the same device. Aeotec Water Leak Sensor owners single out solid build quality and detection within seconds, and some wire it to a smart shutoff valve; they complain about the IP20 housing, a CR2 battery that costs more to replace, and occasional Zigbee drops outside SmartThings and Home Assistant. Fibaro Flood Sensor (Z-Wave) owners add the tilt sensor and tamper alerts as an extra layer and like the optional wired supply, while a few found their platform misidentified it, wished a probe cable were included or received a unit with a low battery.

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • Aeotec Water Leak Sensor
  • Fibaro Flood Sensor (Z-Wave)

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Frequently Asked Questions

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

The Fibaro Flood Sensor (Z-Wave) if you run Z-Wave: it adds a siren, a light, tilt and tamper alerts and longer battery life with optional wired power. The Aeotec Water Leak Sensor is the answer for a Zigbee hub.

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

The radio. The Aeotec Water Leak Sensor is Zigbee and the Fibaro Flood Sensor (Z-Wave) is Z-Wave, so each needs a matching hub.

Is the Fibaro water sensor a Z-Wave device?

Yes. The Fibaro Flood Sensor (Z-Wave) needs a Z-Wave hub and works with SmartThings and Home Assistant. The Aeotec Water Leak Sensor works with the same two platforms over Zigbee.

Do both warn about freezing pipes?

Yes. The Aeotec Water Leak Sensor and the Fibaro Flood Sensor (Z-Wave) both measure temperature and send freeze alerts.

Who should buy the Aeotec Water Leak Sensor?

SmartThings and Home Assistant users on a Zigbee network who want leak, temperature and freeze alerts from a compact sensor.

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

Z-Wave households that want a local siren and light, tamper alerts and the option of wired power.

Full comparison table

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