Winner
Updated November 2026
Data from the official Fibaro and Moen sites.
2026 verdict
For a Z-Wave or Home Assistant home, the Fibaro Flood Sensor (Z-Wave) is the better water leak sensor of these two.
It pairs with almost any Z-Wave controller and combines water, temperature and tilt sensing with tamper alerts and an on-device sound and light. The Moen Smart Leak Detector is the more affordable and more flexible placement option, with direct 2.4 GHz Wi-Fi, an IP67 body and a 48-inch remote sensing disc, but it has no tilt or tamper sensing. Pick the Fibaro inside a hub-based smart home, and the Moen for a hub-free sensor that reaches into tight spots.
Works with
Connectivity
vs
$54.72
Works with
Connectivity
- Wi-Fi 2.4 GHz
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| Feature | Fibaro Flood Sensor (Z-Wave) | Moen Smart Leak Detector | Winner |
|---|---|---|---|
| Price | $60.12 | $54.72 | Moen Smart Leak Detector |
| Rating | 4.3 | 3.3 | Fibaro Flood Sensor (Z-Wave) |
| Integrations | Samsung SmartThings, Home Assistant | Home Assistant | Fibaro Flood Sensor (Z-Wave) |
| Sensors | Water Leak, Temperature, Tilt | Water Leak, Temperature | Fibaro Flood Sensor (Z-Wave) |
| Alerts | Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Tamper Alerts | Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts | Fibaro Flood Sensor (Z-Wave) |
| Warranty | 1 year | 1 year | Tie |
| Battery Life | 2 years | 2 years | Tie |
| Connectivity | Z-Wave | 2.4 GHz WiFi | Tie |
| On Device Alert Sound | YES | YES | Tie |
| On Device Alert Light | YES | YES | Tie |
What the differences mean
Hub
The Fibaro Flood Sensor (Z-Wave) works only through a Z-Wave controller. The Moen Smart Leak Detector joins 2.4 GHz Wi-Fi directly and needs no hub.
Sensors
The Fibaro Flood Sensor (Z-Wave) senses water, temperature and tilt and flags tampering. The Moen Smart Leak Detector senses water, temperature and humidity but has no tilt or tamper alert.
Remote probe
The Moen Smart Leak Detector includes a 48-inch remote sensing disc. The Fibaro Flood Sensor (Z-Wave) has no probe, so the puck sits at the leak.
Platforms
The Fibaro Flood Sensor (Z-Wave) reaches Samsung SmartThings and Home Assistant. The Moen Smart Leak Detector is only partially supported by Home Assistant and lists no SmartThings, HomeKit, Google Home or Matter path.
Price
The Moen Smart Leak Detector is the more affordable of the two. The Fibaro Flood Sensor (Z-Wave) charges a premium for its Z-Wave integration and wider sensor set.
Which one to buy if
- you run Home Assistant or another Z-Wave hub
The Fibaro Flood Sensor (Z-Wave) pairs with nearly any Z-Wave controller and stays local to it.
- you want tilt and tamper alerts
The Fibaro Flood Sensor (Z-Wave) is the only one of the two with tilt sensing and tamper alerts.
- the leak is under a sink or behind an appliance
The Moen Smart Leak Detector's 48-inch remote disc reaches where the body cannot.
- your home has no smart home hub
The Moen Smart Leak Detector joins Wi-Fi on its own; the Fibaro needs a Z-Wave controller.
- you want wired backup power
The Fibaro Flood Sensor (Z-Wave) accepts 12/24 V DC so the battery becomes emergency power.
Winner
$60.12
- + Rating: 4.3
- + Integrations: Samsung SmartThings, Home Assistant
- + Sensors: Water Leak, Temperature, Tilt
- - Price: $60.12 vs $54.72
$54.72
- + Price: $54.72
- - Rating: 3.3 vs 4.3
- - Integrations: Home Assistant vs Samsung SmartThings, Home Assistant
What owners say
Owners of both sensors report quick, drama-free pairing and reliable readings once the device is online. Fibaro Flood Sensor (Z-Wave) owners praise how compact and easy to hide it is, the built-in temperature and tilt sensing, the tamper alerts, and battery life that matches the roughly two-year rating, with the optional wired connection a favorite of anyone who wants the cell as backup; a few mention their platform misidentifying the sensor. Moen Smart Leak Detector owners like the remote sensing disc and the temperature and humidity display, but a large share describe a painful app setup and units that arrived with the battery already drained. Both groups treat the two-year battery as the maintenance milestone to plan for.
Frequently Asked Questions
Which is better overall: Fibaro Flood Sensor (Z-Wave) or Moen Smart Leak Detector?
For a Z-Wave or Home Assistant home, the Fibaro Flood Sensor (Z-Wave), because it pairs with almost any Z-Wave controller and adds tilt and tamper sensing. The Moen Smart Leak Detector is the better fit when you want no hub, Wi-Fi setup, a remote sensing disc and an IP67 body.
Does the Fibaro Flood Sensor (Z-Wave) work without a hub?
No. The Fibaro Flood Sensor (Z-Wave) connects only over Z-Wave and needs a controller, while the Moen Smart Leak Detector joins 2.4 GHz Wi-Fi on its own.
What does the Fibaro Flood Sensor (Z-Wave) sense besides water?
The Fibaro Flood Sensor (Z-Wave) also senses temperature and tilt, sends temperature and freeze alerts and flags tampering. The Moen Smart Leak Detector senses water, temperature and humidity but has no tilt or tamper alert.
How long do the batteries last in these sensors?
Both run on a CR123A rated for about two years. The Fibaro Flood Sensor (Z-Wave) can also be wired to 12/24 V DC so the battery serves as emergency power.
Who should buy the Fibaro Flood Sensor (Z-Wave)?
Owners of a Z-Wave or Home Assistant setup who want a compact sensor with water, temperature and tilt sensing, tamper alerts and the option of wired power.
Who should buy the Moen Smart Leak Detector?
Buyers without a hub who need a Wi-Fi sensor with an IP67 body and a 48-inch remote disc for a sump pit or a spot under an appliance.
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