Water Leak Sensors · Head to head

Fibaro Flood Sensor (HomeKit) vs Moen Smart Leak Detector

Full Smart Water Leak Sensors comparison in 2026

Updated October 2026
Data from the official Fibaro and Moen sites.
2026 verdict
For an Apple Home household, the Fibaro Flood Sensor (HomeKit) is the better pick of these two water leak sensors.
Fibaro Flood Sensor (HomeKit)
Winner
Fibaro Flood Sensor (HomeKit)
Currently unavailable on Amazon USA
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It wins on integrations, sensors and alerts: it pairs over Bluetooth through a HomeKit hub, senses water, temperature and tilt, flags tampering, and runs on a CR123A with the option of wired backup power. The Moen Smart Leak Detector answers with a hub-free 2.4 GHz Wi-Fi connection, a 48-inch remote sensing disc for sump pits, and temperature plus humidity readings with freeze alerts. Choose the Fibaro for an Apple Home setup that wants tilt and tamper coverage, and the Moen when the sensor must sit on Wi-Fi without any hub at all.
vs
Moen Smart Leak Detector
Moen

Moen Smart Leak Detector

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FeatureFibaro Flood Sensor (HomeKit)Moen Smart Leak DetectorWinner
Rating4.13.3Fibaro Flood Sensor (HomeKit)
IntegrationsApple HomeKit, Home AssistantHome AssistantFibaro Flood Sensor (HomeKit)
SensorsWater Leak, Temperature, TiltWater Leak, TemperatureFibaro Flood Sensor (HomeKit)
AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Tamper AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature AlertsFibaro Flood Sensor (HomeKit)
Warranty1 year1 yearTie
Battery Life2 years2 yearsTie
ConnectivityBluetooth2.4 GHz WiFiTie
On Device Alert SoundYESYESTie
On Device Alert LightYESYESTie

What the differences mean

Hub and protocol

The Fibaro Flood Sensor (HomeKit) has no Wi-Fi radio and relies on Bluetooth through an Apple home hub, so it slots into HomeKit without a bridge. The Moen Smart Leak Detector connects straight to 2.4 GHz Wi-Fi, which means no hub at all but also a device that reports through the Moen app and partial Home Assistant support.

Sensor set

Beyond water, the Fibaro Flood Sensor (HomeKit) adds temperature and a tilt sensor that doubles as tamper detection. The Moen Smart Leak Detector adds temperature and humidity instead but has no tilt and no tamper alert, so it cannot tell you the unit was moved.

Remote probe

The Moen Smart Leak Detector ships with a remote sensing disc on a cable that reaches 48 inches, which is what lets the body sit somewhere accessible while the probe drops into a sump pit. The Fibaro Flood Sensor (HomeKit) has no probe, so the puck itself has to sit where water will reach it.

Power

Both run on a CR123A rated for about two years, but the Fibaro Flood Sensor (HomeKit) can also be wired to 12/24 V DC so the battery becomes an emergency backup. The Moen Smart Leak Detector is battery only.

Smart home reach

The Fibaro Flood Sensor (HomeKit) reaches Apple HomeKit and Home Assistant. The Moen Smart Leak Detector is listed as partially supported by Home Assistant and works through the Moen and Alexa skills, with no HomeKit, SmartThings, Google Home or Matter path.

Which one to buy if

What owners say

Owners of both sensors describe the core job getting done: water found early and an alert that actually reaches a phone. Beyond that, Fibaro Flood Sensor (HomeKit) owners highlight how small and easy to hide it is, fast HomeKit pairing, the built-in temperature and tilt sensing, and battery life that still reads near full after a year; their main complaints are that Bluetooth range depends on how close a HomePod or Apple TV sits, that the alarm cannot be silenced remotely, and that it is expensive for a single puck. Moen Smart Leak Detector owners single out the remote sensing cable for sump pits and hard-to-reach spots and the temperature and humidity display, but a large share describe a painful setup, an app that loops during pairing, and units arriving with a partly drained battery.

Frequently Asked Questions

Which is better overall: Fibaro Flood Sensor (HomeKit) or Moen Smart Leak Detector?

For an Apple Home household, the Fibaro Flood Sensor (HomeKit). It needs no bridge beyond a HomeKit hub, senses water, temperature and tilt, flags tampering and can run on wired backup power. The Moen Smart Leak Detector is the pick when you want a hub-free Wi-Fi sensor with a remote probe.

What is the biggest difference between the Fibaro Flood Sensor (HomeKit) and the Moen Smart Leak Detector?

The radio and the sensor set. The Fibaro Flood Sensor (HomeKit) talks over Bluetooth through an Apple home hub and adds tilt and tamper sensing; the Moen Smart Leak Detector joins 2.4 GHz Wi-Fi directly, includes a 48-inch remote sensing disc and reports temperature and humidity but no tilt.

Do the Fibaro Flood Sensor (HomeKit) and the Moen Smart Leak Detector work with Alexa or Google Home?

Neither does natively. The Fibaro Flood Sensor (HomeKit) supports Apple HomeKit and Home Assistant, and the Moen Smart Leak Detector supports Home Assistant partially, with Alexa only able to announce through the Moen skill.

How long do the batteries last in the Fibaro Flood Sensor (HomeKit) and the Moen Smart Leak Detector?

Both are rated around two years on a CR123A. The Fibaro Flood Sensor (HomeKit) can also be wired to 12/24 V DC so the cell becomes a backup, while the Moen Smart Leak Detector is battery only.

Who should buy the Fibaro Flood Sensor (HomeKit)?

Apple Home users who want a small, hub-light sensor with temperature, tilt and tamper sensing and the option of wired power.

Who should buy the Moen Smart Leak Detector?

Buyers who want a hub-free Wi-Fi sensor with a remote probe for sump pits, and who value temperature and humidity readings over tilt or tamper detection.

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