Water Leak Sensors · Head to head

Aeotec Water Leak Sensor 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 Aeotec and Honeywell Home sites.
2026 verdict
A 100 dBA buzzer and a sensing cable give the Resideo L1 WiFi Water Leak and Freeze Detector the edge over the Aeotec Water Leak Sensor.
Resideo L1 WiFi Water Leak and Freeze Detector
Winner
Resideo L1 WiFi Water Leak and Freeze Detector
$68.00

Last recorded price

Buy on Amazon USA
It ships with a 5 ft cable that senses water along its whole length and extends to about 500 ft, tracks temperature and humidity, and seals to IP44 with a two-year warranty and about two years on two AA cells. The Aeotec Water Leak Sensor is the cheaper, better rated Zigbee puck for SmartThings and Home Assistant, sensing water and temperature but staying dry only at IP20 and silent on the device. Pick the Resideo to cover a long run of pipe and hear the alarm, the Aeotec for a proven Zigbee spot sensor on a budget.
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FeatureAeotec Water Leak SensorResideo L1 WiFi Water Leak and Freeze DetectorWinner
Price$39.99$68.00Aeotec Water Leak Sensor
Rating4.53.7Aeotec Water Leak Sensor
Warranty1 year2 yearsResideo L1 WiFi Water Leak and Freeze Detector
Weather ResistanceIP20IP44Resideo L1 WiFi Water Leak and Freeze Detector
Battery Life1 year2 yearsResideo L1 WiFi Water Leak and Freeze Detector
ConnectivityZigbee2.4 GHz WiFi, BluetoothResideo L1 WiFi Water Leak and Freeze Detector
IntegrationsSamsung SmartThings, Home AssistantNoneAeotec Water Leak Sensor
On Device Alert SoundNOYESResideo L1 WiFi Water Leak and Freeze Detector
On Device Alert LightNOYESResideo L1 WiFi Water Leak and Freeze Detector
SensorsWater Leak, TemperatureWater Leak, TemperatureTie
AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature AlertsTie

What the differences mean

Alerting

The Resideo L1 WiFi Water Leak and Freeze Detector sounds a 100 dBA buzzer and blinks a red LED on the device, while the Aeotec Water Leak Sensor has no on-device sound or light. If you want to hear the alarm in the room, only the Resideo does that.

Coverage

The Resideo L1 WiFi Water Leak and Freeze Detector includes a 5 ft sensing cable that detects water along its full length and can extend to about 500 ft, while the Aeotec Water Leak Sensor senses only at its own contacts. One can watch a run of pipe; the other watches a spot.

Water protection

The Resideo L1 WiFi Water Leak and Freeze Detector is IP44, fine for splashes in a utility room, while the Aeotec Water Leak Sensor is only IP20 and must stay dry. Placement near water favors the Resideo.

Ecosystem

The Resideo L1 WiFi Water Leak and Freeze Detector joins 2.4 GHz Wi-Fi with no hub but stays inside the First Alert and Resideo apps, with no Alexa, Google Home, Apple Home, SmartThings or Matter. The Aeotec Water Leak Sensor pairs over Zigbee with SmartThings and Home Assistant.

Battery and warranty

The Resideo L1 WiFi Water Leak and Freeze Detector is rated for about two years on two AA cells and carries a two-year warranty, while the Aeotec Water Leak Sensor runs about a year on a CR2 with a one-year warranty. The Resideo covers more and lasts longer between changes.

Which one to buy if

Aeotec

Aeotec Water Leak Sensor

Prime exclusive deal
$39.99

Last recorded price

Buy on Amazon USA
  • + Price: $39.99
  • + Rating: 4.5
  • + Integrations: Samsung SmartThings, Home Assistant
  • - Warranty: 1 year vs 2 years
  • - Weather Resistance: IP20 vs IP44

What owners say

Owners of the Aeotec Water Leak Sensor describe it as solidly built and quick to react, with several reporting it senses even a small amount of water within seconds, and they single out the easy pairing with SmartThings or Home Assistant and the automations that can drive a shutoff valve. Their warnings are about the IP20 body, which cannot be splashed or submerged, a CR2 cell that costs more to replace than button cells, and a minority who see it drop off the Zigbee network, especially outside a SmartThings or Home Assistant hub.

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.

  • Aeotec Water Leak Sensor
  • Resideo L1 WiFi Water Leak and Freeze Detector

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Frequently Asked Questions

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

The Resideo L1 WiFi Water Leak and Freeze Detector wins on coverage, on-device alerting, sealing and warranty, with a sensing cable and a 100 dBA buzzer. The Aeotec Water Leak Sensor is the cheaper, better rated option for a Zigbee spot sensor on SmartThings or Home Assistant.

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

Coverage and alerting. The Resideo L1 WiFi Water Leak and Freeze Detector uses a 5 ft sensing cable and sounds a 100 dBA buzzer, while the Aeotec Water Leak Sensor is a silent Zigbee puck that senses only at its own contacts.

Does the Resideo L1 WiFi Water Leak and Freeze Detector work with Alexa or Google Home?

No. The Resideo L1 WiFi Water Leak and Freeze Detector reports through the First Alert and Resideo apps, with no Alexa, Google Home, Apple Home, SmartThings or Matter. The Aeotec Water Leak Sensor reaches SmartThings and Home Assistant over Zigbee.

Can the Resideo L1 WiFi Water Leak and Freeze Detector shut off the water by itself?

Not on its own. The Resideo L1 WiFi Water Leak and Freeze Detector is a detector, but up to 30 of them can pair with an L5 WiFi water leak shutoff valve so a detected leak closes the water main.

Who should buy the Aeotec Water Leak Sensor, and who should buy the Resideo L1 WiFi Water Leak and Freeze Detector?

Buy the Aeotec Water Leak Sensor for a Zigbee home on SmartThings or Home Assistant that wants a low-cost water and freeze sensor. Buy the Resideo L1 WiFi Water Leak and Freeze Detector to cover a long run of pipe with a cable, a loud buzzer and no hub.

Full comparison table

Compare all 34 Water Leak Sensors side by side

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  • 34 Water Leak Sensors
  • 36 specs compared
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