Updated September 2026
Data from Amazon and official Kidde and Honeywell Home sites.
2026 verdict
Kidde voice assistants versus a Resideo cable?
The Resideo L1 WiFi Water Leak and Freeze Detector is the better water leak sensor here, winning on a 2-year warranty, IP44 weather sealing and broader connectivity. The Kidde WiFi Water Leak & Freeze Detector still holds the more affordable price, the stronger owner reviews and broader smart home integrations. The Resideo L1 WiFi Water Leak and Freeze Detector is the more durable water leak sensor, with IP44 sealing, a 2-year warranty and an alert light; the Kidde WiFi Water Leak & Freeze Detector is the cheaper one that already speaks Alexa, Google Home and Home Assistant.
Price alerts
Water Leak Sensor prices change while you decide
We check the price of every Water Leak Sensor in the catalog daily and email you the drops, whichever one you pick.
| Feature | Kidde WiFi Water Leak & Freeze Detector | Resideo L1 WiFi Water Leak and Freeze Detector | Winner |
|---|---|---|---|
| Price | $18.43 | $68.00 | Kidde WiFi Water Leak & Freeze Detector |
| Rating | 4.0 | 3.7 | Kidde WiFi Water Leak & Freeze Detector |
| Warranty | 1 year | 2 years | Resideo L1 WiFi Water Leak and Freeze Detector |
| Weather Resistance | NO | IP44 | Resideo L1 WiFi Water Leak and Freeze Detector |
| Connectivity | 2.4 GHz WiFi | 2.4 GHz WiFi, Bluetooth | Resideo L1 WiFi Water Leak and Freeze Detector |
| Integrations | Google Home, Alexa, Home Assistant | None | Kidde WiFi Water Leak & Freeze Detector |
| Alerts | Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Low Battery Alerts | Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts | Kidde WiFi Water Leak & Freeze Detector |
| On Device Alert Light | NO | YES | Resideo L1 WiFi Water Leak and Freeze Detector |
| Sensors | Water Leak, Temperature | Water Leak, Temperature | Tie |
| On Device Alert Sound | YES | YES | Tie |
$18.43
- + Price: $18.43
- + Rating: 4.0
- + Integrations: Google Home, Alexa, Home Assistant
- - Warranty: 1 year vs 2 years
- - Weather Resistance: NO vs IP44
Winner
$68.00
- + Warranty: 2 years
- + Weather Resistance: IP44
- + Connectivity: 2.4 GHz WiFi, Bluetooth
- - Price: $68.00 vs $18.43
- - Rating: 3.7 vs 4.0
Frequently Asked Questions
Which is better overall, the Kidde WiFi Water Leak & Freeze Detector or the Resideo L1 WiFi Water Leak and Freeze Detector?
The Resideo L1 WiFi Water Leak and Freeze Detector is better overall, winning on a 2-year warranty, IP44 weather sealing and broader connectivity. The Kidde WiFi Water Leak & Freeze Detector still leads on the more affordable price and the stronger owner reviews.
What is the biggest difference between the Kidde WiFi Water Leak & Freeze Detector and the Resideo L1 WiFi Water Leak and Freeze Detector?
The structural gap is that the Resideo L1 WiFi Water Leak and Freeze Detector brings a 5 ft sensing cable, freeze tracking and a 100 dBA buzzer plus blinking red LED, while the Kidde WiFi Water Leak & Freeze Detector is a direct 2.4 GHz Wi-Fi water leak sensor with third-party smart home support.
Which has the longer warranty, the Kidde WiFi Water Leak & Freeze Detector or the Resideo L1 WiFi Water Leak and Freeze Detector?
The Resideo L1 WiFi Water Leak and Freeze Detector is covered for 2 years, against 1 year on the Kidde WiFi Water Leak & Freeze Detector.
Which of the Kidde WiFi Water Leak & Freeze Detector and the Resideo L1 WiFi Water Leak and Freeze Detector works with more smart home platforms?
The Kidde WiFi Water Leak & Freeze Detector reaches Google Home, Alexa, Home Assistant. The Resideo L1 WiFi Water Leak and Freeze Detector has no third-party smart home integrations and stays in its own app.
Who should buy the Kidde WiFi Water Leak & Freeze Detector?
Buyers who specifically want the more affordable price and the stronger owner reviews, even though the Resideo L1 WiFi Water Leak and Freeze Detector wins overall.
Who should buy the Resideo L1 WiFi Water Leak and Freeze Detector?
Most people comparing these two water leak sensors, because the Resideo L1 WiFi Water Leak and Freeze Detector wins on a 2-year warranty and IP44 weather sealing.
Full comparison table
Compare all 32 Water Leak Sensors side by side
You are looking at two of them. The full table lines up all Water Leak Sensors in the catalog with the same specs, so you can filter by what you need and sort by price or rating.
- 32 Water Leak Sensors
- 36 specs compared
- 33 filters
YoLinkWater Leak Sensor 4
17% OFF$23.99$19.99
ShellyFlood S Gen4
$27.99
YoLinkWater Leak Sensor 1
10% OFF$16.99$15.29
X-SenseWi-Fi Water Leak Detector
$15.99
TP-LinkTapo T300
15% OFF$19.99$16.99
SwitchBotWater Leak Detector
$16.99
AeotecWater Leak Sensor
$39.99
EufyWater and Freeze Sensor
$34.99
EveWater Guard
$109.95
AqaraWater Leak Sensor T1
GoveeWater Leak Detector 2
$69.99
SwitchBotWater Leak Detector (Sensor Cable Edition)
10% OFF$19.99$17.99
FibaroFlood Sensor (Z-Wave)
16% OFF$78.53$66.12
SonoffZigbee Water Leak Sensor
$14.99
AqaraWater Leak Sensor
$18.99
GoveeWater Sensor Alarm
$15.99
ShellyFlood Gen4
$39.99
HeimanSmart Water Leakage Sensor
20% OFF$19.99$15.99
FibaroFlood Sensor (HomeKit)
$43.28
AeotecWater Sensor 7 Pro
$47.95
ThermostatsHoneywell HomeRTH9585WF Wi-Fi Smart Color Thermostat
31% OFF$179.99$123.49
ThermostatsHoneywell HomeT5 Smart Thermostat
30% OFF$109.99$77.39
ThermostatsHoneywell HomeT9 Smart Thermostat
$209.99
ThermostatsHoneywell HomeX2S Smart Thermostat
25% OFF$79.98$59.99
ThermostatsHoneywell HomeX7S Smart Thermostat
24% OFF$199.99$151.03
ThermostatsHoneywell HomeX8S Smart Thermostat
$256.22
Water Leak SensorsHoneywell HomeL1 WiFi Water Leak and Freeze Detector
$68.00