Last recorded priceOct 7, 2026$61.32
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| Feature | Fibaro Flood Sensor (Z-Wave) | Resideo L1 WiFi Water Leak and Freeze Detector | Winner |
|---|---|---|---|
| Rating | 4.3 | 3.8 | Fibaro Flood Sensor (Z-Wave) |
| Warranty | 1 year | 2 years | Resideo L1 WiFi Water Leak and Freeze Detector |
| Connectivity | Z-Wave | 2.4 GHz WiFi, Bluetooth | Resideo L1 WiFi Water Leak and Freeze Detector |
| Integrations | Samsung SmartThings, Home Assistant | None | 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) |
| Battery Life | 2 years | 2 years | Tie |
| On Device Alert Sound | YES | YES | Tie |
| On Device Alert Light | YES | YES | Tie |
What the differences mean
Tilt and tamper detection
The Fibaro Flood Sensor (Z-Wave) adds a tilt sensor and tamper alerts on top of leak and freeze detection; the Resideo L1 WiFi Water Leak and Freeze Detector has neither.
Sensing cable reach
The Resideo L1 WiFi Water Leak and Freeze Detector ships with a 5 ft cable that senses water along its whole length, and accessory cables extend that to a maximum of 500 ft; the Fibaro Flood Sensor (Z-Wave) has no cable at all.
Warranty
The Resideo L1 WiFi Water Leak and Freeze Detector carries a 2-year warranty against 1 year on the Fibaro Flood Sensor (Z-Wave).
Smart home reach
The Fibaro Flood Sensor (Z-Wave) works with Samsung SmartThings and Home Assistant over Z-Wave; the Resideo L1 WiFi Water Leak and Freeze Detector has no confirmed integration with Google Home, Alexa, Apple HomeKit, SmartThings or Matter, and stays mostly inside the Resideo and First Alert apps.
Which one to buy if
- you already run a Z-Wave or Home Assistant hub and want tilt and tamper coverage too
The Fibaro Flood Sensor (Z-Wave) is the cheaper, better-rated pick with sensing the Resideo L1 WiFi Water Leak and Freeze Detector does not offer.
- a long run of pipe or a sloped basement floor needs coverage, not one spot
The Resideo L1 WiFi Water Leak and Freeze Detector's cable senses water along its entire length and can extend to 500 ft.
- you want the leak to also close the water main automatically
Up to 30 Resideo L1 WiFi Water Leak and Freeze Detector units can pair with an L5 shutoff valve to do exactly that.
- budget and a stronger owner rating matter most
The Fibaro Flood Sensor (Z-Wave) costs less and is the better reviewed of the two.
- + Rating: 4.3
- + Integrations: Samsung SmartThings, Home Assistant
- + Sensors: Water Leak, Temperature, Tilt
- - Warranty: 1 year vs 2 years
- - Connectivity: Z-Wave vs 2.4 GHz WiFi, Bluetooth
- + Warranty: 2 years
- + Connectivity: 2.4 GHz WiFi, Bluetooth
- - Rating: 3.8 vs 4.3
- - Integrations: None vs Samsung SmartThings, Home Assistant
What owners say
Owners of the Fibaro Flood Sensor (Z-Wave) describe pairing it in seconds once a Z-Wave hub is in place, and several specifically mention Home Assistant and SmartThings recognizing it without any fuss. The compact, easy-to-hide body comes up often as a plus for tucking behind an appliance or under a sink. The combined water-leak, temperature and tilt sensing is called out as more than expected at the price, and the tamper alert is mentioned as a nice extra layer some competing sensors skip. The recurring complaint is that a few reviewers had their smart-home platform misidentify the sensor or need extra configuration, and a handful received units with cosmetic scratches or a battery that had already partly drained.
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.
- Fibaro Flood Sensor (Z-Wave)
- Resideo L1 WiFi Water Leak and Freeze Detector
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Frequently Asked Questions
Is the Fibaro Flood Sensor (Z-Wave) or the Resideo L1 WiFi Water Leak and Freeze Detector the better leak detector?
The Fibaro Flood Sensor (Z-Wave) is the better overall pick: cheaper, better reviewed, and it adds tilt and tamper detection the Resideo L1 WiFi Water Leak and Freeze Detector lacks. The Resideo sensor answers with a longer warranty and a cable that reaches up to 500 ft.
What is the biggest difference between the Fibaro Flood Sensor (Z-Wave) and the Resideo L1 WiFi Water Leak and Freeze Detector?
The sensing cable. The Resideo L1 WiFi Water Leak and Freeze Detector ships with a 5 ft cable extendable to 500 ft for watching a long run of pipe; the Fibaro Flood Sensor (Z-Wave) has no cable but adds tilt and tamper alerts instead.
Which has the longer warranty?
The Resideo L1 WiFi Water Leak and Freeze Detector, covered for 2 years against 1 year on the Fibaro Flood Sensor (Z-Wave).
Can the Resideo L1 WiFi Water Leak and Freeze Detector shut the water off by itself?
Not alone, but up to 30 units can pair with a separate Resideo L5 shutoff valve so a detected leak closes the water main automatically.
Who should buy the Fibaro Flood Sensor (Z-Wave)?
Z-Wave or Home Assistant households who want the cheaper, better-rated sensor with tilt and tamper detection built in.
Who should buy the Resideo L1 WiFi Water Leak and Freeze Detector?
Buyers who need a cable that reaches a long stretch of pipe or a sloped floor, and who want the option to pair it with an automatic shutoff valve.
Compare all 34 Water Leak Sensors side by side
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