Water Leak Sensors · Head to head

Fibaro Flood Sensor (Z-Wave) vs Resideo L1 WiFi Water Leak and Freeze Detector

Full Smart Water Leak Sensors comparison in 2026

Updated October 2026
Data from Amazon and official Fibaro and Honeywell Home sites.
2026 verdict
Tilt and tamper detection the Resideo L1 WiFi Water Leak and Freeze Detector does not carry help the Fibaro Flood Sensor (Z-Wave) win this comparison, alongside a lower price and a higher owner rating.
Fibaro Flood Sensor (Z-Wave)
Winner
Fibaro Flood Sensor (Z-Wave)

Last recorded priceOct 7, 2026$61.32

Currently unavailable on Amazon USA
It also reaches Samsung SmartThings and Home Assistant natively over Z-Wave. The Resideo L1 WiFi Water Leak and Freeze Detector answers with a 2-year warranty, IP44 weather sealing and a 5 ft sensing cable that extends to a maximum of 500 ft, useful for watching a long run of pipe rather than one spot. Both already sound a local alarm with a light, and both run about the same length of time on their batteries. Choose the Fibaro Flood Sensor (Z-Wave) for the cheaper, better-rated sensor with tilt and tamper detection inside a Z-Wave or Home Assistant setup; choose the Resideo L1 WiFi Water Leak and Freeze Detector for line coverage and automatic shutoff through its own L5 valve.
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FeatureFibaro Flood Sensor (Z-Wave)Resideo L1 WiFi Water Leak and Freeze DetectorWinner
Rating4.33.8Fibaro Flood Sensor (Z-Wave)
Warranty1 year2 yearsResideo L1 WiFi Water Leak and Freeze Detector
ConnectivityZ-Wave2.4 GHz WiFi, BluetoothResideo L1 WiFi Water Leak and Freeze Detector
IntegrationsSamsung SmartThings, Home AssistantNoneFibaro Flood Sensor (Z-Wave)
SensorsWater Leak, Temperature, TiltWater Leak, TemperatureFibaro Flood Sensor (Z-Wave)
AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Tamper AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature AlertsFibaro Flood Sensor (Z-Wave)
Battery Life2 years2 yearsTie
On Device Alert SoundYESYESTie
On Device Alert LightYESYESTie

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

Winner
Prime exclusive deal

Last recorded priceOct 7, 2026$61.32

Currently unavailable on Amazon USA
  • + 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

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

Loading price history...

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?
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.

Full comparison table

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