Water Leak Sensors · Head to head

Aqara Water Leak Sensor T1 vs Resideo L1 WiFi Water Leak and Freeze Detector

Full Smart Water Leak Sensors comparison in 2026

Updated October 2026
Data from the official Aqara and Honeywell Home sites.
2026 verdict
For a utility room or basement where a leak can run the length of a pipe, the Resideo L1 WiFi Water Leak and Freeze Detector is the more capable of these two water leak sensors.
Resideo L1 WiFi Water Leak and Freeze Detector
Winner
Resideo L1 WiFi Water Leak and Freeze Detector
$68.00
Buy on Amazon USA
It brings a 5 ft sensing cable that extends to 500 ft, tracks temperature and humidity for freeze alerts, sounds a 100 dBA buzzer with a red LED on the device, and carries a two-year warranty, all without a hub. The Aqara Water Leak Sensor T1 is the smaller, cheaper and more weatherproof option, triggering at just 0.5 mm of water and reaching Apple HomeKit, Google Home and Matter through an Aqara hub, or SmartThings and Home Assistant directly. Pick the Resideo L1 WiFi Water Leak and Freeze Detector for cable coverage, freeze warnings and local alerting; pick the Aqara Water Leak Sensor T1 for a discreet IP67 puck inside a Zigbee smart home.
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FeatureAqara Water Leak Sensor T1Resideo L1 WiFi Water Leak and Freeze DetectorWinner
Price€24.99$68.00Aqara Water Leak Sensor T1
Rating4.43.7Aqara Water Leak Sensor T1
Warranty1 year2 yearsResideo L1 WiFi Water Leak and Freeze Detector
Weather ResistanceIP67IP44Aqara Water Leak Sensor T1
ConnectivityZigbee2.4 GHz WiFi, BluetoothResideo L1 WiFi Water Leak and Freeze Detector
IntegrationsGoogle Home, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterNoneAqara Water Leak Sensor T1
SensorsWater LeakWater Leak, TemperatureResideo L1 WiFi Water Leak and Freeze Detector
AlertsWater Leak Alerts, Low Battery AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature AlertsResideo L1 WiFi Water Leak and Freeze Detector
On Device Alert SoundNOYESResideo L1 WiFi Water Leak and Freeze Detector
On Device Alert LightNOYESResideo L1 WiFi Water Leak and Freeze Detector
Battery Life2 years2 yearsTie

What the differences mean

How each detects water

The Resideo L1 WiFi Water Leak and Freeze Detector senses water at its base contacts and along the full length of a 5 ft cable, so it covers a line rather than a spot. The Aqara Water Leak Sensor T1 detects water where the puck sits, triggering once water reaches about 0.5 mm.

Coverage you can extend

Accessory cables extend the Resideo L1 WiFi Water Leak and Freeze Detector's sensing run to a maximum of 500 ft, so one detector can watch a whole utility room. The Aqara Water Leak Sensor T1 has no probe or cable, so it only watches the one point it is placed on.

Hub or no hub

The Resideo L1 WiFi Water Leak and Freeze Detector joins 2.4 GHz Wi-Fi directly with Bluetooth used only for setup, so it needs no hub. The Aqara Water Leak Sensor T1 requires a Zigbee hub to work at all, and an Aqara hub for its HomeKit, Google Home and Matter paths.

Smart home reach

The Aqara Water Leak Sensor T1 reaches Apple HomeKit, Google Home and Matter through an Aqara hub, and SmartThings and Home Assistant directly. The Resideo L1 WiFi Water Leak and Freeze Detector stays inside the First Alert and Resideo apps, with no Alexa, Google Home, HomeKit, SmartThings or Matter support.

Freeze and climate sensing

The Resideo L1 WiFi Water Leak and Freeze Detector also tracks temperature and humidity and alerts when either leaves a range you set, which is how it warns about pipes at risk of freezing. The Aqara Water Leak Sensor T1 detects water only, with no temperature or freeze alerts.

Weather and local alarm

The Aqara Water Leak Sensor T1 is IP67 rated and survives submersion, but it is silent. The Resideo L1 WiFi Water Leak and Freeze Detector is IP44, splash-resistant rather than submersible, and sounds a 100 dBA buzzer with a blinking LED on the device.

Which one to buy if

Frequently Asked Questions

Which is better overall: Aqara Water Leak Sensor T1 or Resideo L1 WiFi Water Leak and Freeze Detector?

The Resideo L1 WiFi Water Leak and Freeze Detector is better overall, winning on warranty, connectivity, sensor coverage and alerts with a cable sensor, freeze tracking and a 100 dBA local alarm. The Aqara Water Leak Sensor T1 still leads on price, its IP67 rating and smart home integrations.

What is the biggest difference between the Aqara Water Leak Sensor T1 and the Resideo L1 WiFi Water Leak and Freeze Detector?

Coverage shape. The Resideo L1 WiFi Water Leak and Freeze Detector senses along a cable that reaches up to 500 ft and tracks temperature, while the Aqara Water Leak Sensor T1 is a point sensor at a fixed spot that reports water only.

Which one needs a hub?

The Aqara Water Leak Sensor T1 needs a Zigbee hub, and an Aqara hub specifically for its Apple HomeKit, Google Home and Matter paths. The Resideo L1 WiFi Water Leak and Freeze Detector needs no hub and joins 2.4 GHz Wi-Fi directly.

Which works with more smart home platforms?

The Aqara Water Leak Sensor T1 reaches Apple HomeKit, Google Home and Matter through an Aqara hub, plus SmartThings and Home Assistant directly. The Resideo L1 WiFi Water Leak and Freeze Detector has no third-party smart home integrations and stays in the First Alert and Resideo apps.

Who should buy the Aqara Water Leak Sensor T1?

Zigbee and Aqara households that want a small, IP67 point sensor with smart home reach through a hub, for under a dishwasher or behind a toilet.

Who should buy the Resideo L1 WiFi Water Leak and Freeze Detector?

Anyone who needs to watch a long run of pipe or a whole utility room, wants freeze warnings and a loud local alarm, and has no smart home hub.

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