Water Leak Sensors · Head to head

Moen Smart Leak Detector vs Sonoff Zigbee Water Leak Sensor

Full Smart Water Leak Sensors comparison in 2026

Updated October 2026
Data from Amazon and official Moen and Sonoff sites.
2026 verdict
The Moen Smart Leak Detector takes this matchup when you want a self-contained alarm: it senses water, temperature and humidity, warns before pipes freeze, and includes a 48-inch remote disc with a buzzer and an LED on the device.
Moen Smart Leak Detector
Winner
Moen Smart Leak Detector
$54.72

Last recorded price

Buy on Amazon USA
The Sonoff Zigbee Water Leak Sensor is cheaper and lasts up to five years on a CR2477, and it reaches Google Home, SmartThings and Home Assistant, but it is silent on its own and needs a Zigbee hub to report anything. Pick the Moen for a hub-free sensor with local alerts and the Sonoff for a budget Zigbee network.
Winner
Moen Smart Leak Detector
Moen

Moen Smart Leak Detector

Prime exclusive deal
$54.72

Last recorded price

Buy on Amazon USA

Also sold in packs

  • Pack of 2$109.44$54.72 per unitBuy
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FeatureMoen Smart Leak DetectorSonoff Zigbee Water Leak SensorWinner
Price$54.72$22.48Sonoff Zigbee Water Leak Sensor
Rating3.34.5Sonoff Zigbee Water Leak Sensor
Battery Life2 years5 yearsSonoff Zigbee Water Leak Sensor
IntegrationsHome AssistantGoogle Home, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterSonoff Zigbee Water Leak Sensor
SensorsWater Leak, TemperatureWater LeakMoen Smart Leak Detector
AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature AlertsWater Leak Alerts, Low Battery AlertsMoen Smart Leak Detector
On Device Alert SoundYESNOMoen Smart Leak Detector
On Device Alert LightYESNOMoen Smart Leak Detector
Warranty1 year1 yearTie
Weather ResistanceIP67IP67Tie
Connectivity2.4 GHz WiFiZigbeeTie

What the differences mean

Local alert

The Moen Smart Leak Detector has a 51 dB buzzer and an alert light. The Sonoff Zigbee Water Leak Sensor has neither.

Sensors

The Moen Smart Leak Detector senses water, temperature and humidity and warns of freezing pipes. The Sonoff Zigbee Water Leak Sensor is water only.

Battery

The Sonoff Zigbee Water Leak Sensor runs about five years on a CR2477. The Moen Smart Leak Detector uses a CR123A rated for about two years.

Hub

The Sonoff Zigbee Water Leak Sensor needs a Zigbee hub. The Moen Smart Leak Detector joins 2.4 GHz Wi-Fi on its own.

Remote probe

The Moen Smart Leak Detector includes a 48-inch remote sensing disc. The Sonoff Zigbee Water Leak Sensor has no probe.

Platforms

The Sonoff Zigbee Water Leak Sensor reaches Google Home, SmartThings, Home Assistant, and Apple Home or Matter through a SONOFF bridge. The Moen Smart Leak Detector lists partial Home Assistant support, with Alexa able to announce through its skill.

Which one to buy if

Winner
Moen

Moen Smart Leak Detector

Prime exclusive deal
$54.72

Last recorded price

Buy on Amazon USA
  • + Sensors: Water Leak, Temperature
  • + Alerts: Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts
  • + On Device Alert Sound: YES
  • - Price: $54.72 vs $22.48
  • - Rating: 3.3 vs 4.5
Sonoff

Sonoff Zigbee Water Leak Sensor

10% OFF
Prime exclusive deal
$22.48
$24.99

Last recorded price

Buy on Amazon USA
  • + Price: $22.48
  • + Rating: 4.5
  • + Battery Life: 5 years
  • - Sensors: Water Leak vs Water Leak, Temperature
  • - Alerts: Water Leak Alerts, Low Battery Alerts vs Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts

What owners say

Owners of both sensors report reliable alerts once the device is connected, and both groups value easy placement near a water source. Moen Smart Leak Detector owners praise the remote sensing disc and the temperature and humidity readout, but many describe a frustrating app setup and units that arrived with the battery partly drained, and some find the alarm quiet. Sonoff Zigbee Water Leak Sensor owners describe near-instant pairing on Home Assistant and Hubitat, automations that can shut off a valve, and a waterproof housing that makes battery changes easy; a common complaint is that the QR code will not scan on Samsung SmartThings, and everyone notes there is no local sound or light. Both groups treat the hub or app as the source of alerts.

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.

  • Moen Smart Leak Detector
  • Sonoff Zigbee Water Leak Sensor

Loading price history...

Frequently Asked Questions

Which is better overall: Moen Smart Leak Detector or Sonoff Zigbee Water Leak Sensor?

For a hub-free sensor with local alerts and temperature, humidity and freeze monitoring, the Moen Smart Leak Detector. Inside a Zigbee network where the hub already handles alerts, the Sonoff Zigbee Water Leak Sensor is cheaper and lasts far longer.

Does the Sonoff Zigbee Water Leak Sensor need a hub?

Yes. The Sonoff Zigbee Water Leak Sensor needs a Zigbee hub, while the Moen Smart Leak Detector joins 2.4 GHz Wi-Fi on its own and reports without one.

Does the Sonoff Zigbee Water Leak Sensor have a local alarm?

No. The Sonoff Zigbee Water Leak Sensor has no on-device sound or light, so alerts depend on your hub. The Moen Smart Leak Detector has a 51 dB buzzer and an alert light.

How long does the battery last in each sensor?

The Sonoff Zigbee Water Leak Sensor is rated for about five years on a CR2477, while the Moen Smart Leak Detector uses a CR123A rated for about two years.

Who should buy the Moen Smart Leak Detector?

Buyers who want a hub-free Wi-Fi alarm with temperature, humidity and freeze alerts and a 48-inch remote disc for tight spots.

Who should buy the Sonoff Zigbee Water Leak Sensor?

Home Assistant and Hubitat users who want an inexpensive, long-lasting Zigbee sensor and are happy to let the hub manage every notification.

Full comparison table

Compare all 34 Water Leak Sensors side by side

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