Water Leak Sensors · Head to head

Eufy Water and Freeze Sensor vs Moen Smart Leak Detector

Full Smart Water Leak Sensors comparison in 2026

Updated October 2026
Data from Amazon and official Eufy and Moen sites.
2026 verdict
With a remote probe and a local alarm, the Moen Smart Leak Detector tops the Eufy Water and Freeze Sensor in this comparison.
Moen Smart Leak Detector
Winner
Moen Smart Leak Detector
$54.72
Buy on Amazon USA
The Moen Smart Leak Detector is IP67, includes a 48-inch sensing cable, and adds temperature, humidity and freeze alerts plus a 51 dB alarm and a blinking LED. The Eufy Water and Freeze Sensor is the cheaper and better-reviewed of the two, and it earns its place for anyone already running a eufy HomeBase: it detects water and freezing pipes and syncs with a QR code in the eufy app. The Eufy Water and Freeze Sensor has no on-device sound or light of its own, relying on the HomeBase alarm, and it needs that base to work at all. Pick the Moen Smart Leak Detector for a sump pit or utility room and a probe you can place, and the Eufy Water and Freeze Sensor for an existing eufy household that wants a low-cost leak and freeze puck.
vs
Winner
Moen Smart Leak Detector
Moen

Moen Smart Leak Detector

Prime exclusive deal
$54.72
Buy on Amazon USA

Also sold in packs

  • Pack of 210% OFF$98.50$109.74$49.25 per unitYou save $10.94Buy
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FeatureEufy Water and Freeze SensorMoen Smart Leak DetectorWinner
Price$34.99$54.72Eufy Water and Freeze Sensor
Rating4.53.3Eufy Water and Freeze Sensor
Weather ResistanceIP65IP67Moen Smart Leak Detector
AlertsWater Leak Alerts, Freeze Temperature AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature AlertsMoen Smart Leak Detector
On Device Alert SoundNOYESMoen Smart Leak Detector
On Device Alert LightNOYESMoen Smart Leak Detector
Warranty1 year1 yearTie
Battery Life2 years2 yearsTie
Connectivity2.4 GHz WiFi2.4 GHz WiFiTie
IntegrationsHome AssistantHome AssistantTie
SensorsWater Leak, TemperatureWater Leak, TemperatureTie

What the differences mean

Alarm and light

The Moen Smart Leak Detector sounds up to 51 dB and blinks an LED. The Eufy Water and Freeze Sensor has no on-device sound or light; the alarm comes from the eufy HomeBase, and it uses the same tone as the security cameras.

Remote sensing

The Moen Smart Leak Detector includes a 48-inch remote sensing disc for a hard-to-reach spot. The Eufy Water and Freeze Sensor has no cable and detects only at its contacts.

Hub

The Eufy Water and Freeze Sensor needs a eufy HomeBase, over Sub-1G, and does nothing without one. The Moen Smart Leak Detector joins 2.4 GHz Wi-Fi directly, with no hub to buy.

Weather rating

The Moen Smart Leak Detector is IP67, the Eufy Water and Freeze Sensor IP65, so the Moen handles a splash a little better. Both are indoor devices that should not be submerged.

Sensing

Both detect water and freezing, but the Moen Smart Leak Detector adds humidity readings and alerts on temperature or humidity out of range, while the Eufy Water and Freeze Sensor offers freeze alerts only, not general temperature alerts.

Which one to buy if

Eufy

Eufy Water and Freeze Sensor

Prime exclusive deal
$34.99
Buy on Amazon USA
  • + Price: $34.99
  • + Rating: 4.5
  • - Weather Resistance: IP65 vs IP67
  • - Alerts: Water Leak Alerts, Freeze Temperature Alerts vs Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts
Winner
Moen

Moen Smart Leak Detector

Prime exclusive deal
$54.72
Buy on Amazon USA
  • + Weather Resistance: IP67
  • + Alerts: Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts
  • + On Device Alert Sound: YES
  • - Price: $54.72 vs $34.99
  • - Rating: 3.3 vs 4.5

What owners say

Moen Smart Leak Detector owners describe a capable sensor once it is online, catching leaks near sump pumps and washer hoses and reporting temperature and humidity; the shared frustration is setup, with unclear pairing instructions, an app that loops, and units whose battery tab was not fully removed so the cell arrived partly drained. Eufy Water and Freeze Sensor owners praise how fast it reacts to a couple of drops and how simply it pairs into the eufy app alongside their other HomeBase devices, and they value the freeze alerts for basements and unheated spaces; some complain the HomeBase alarm shares the same loud tone as the cameras, and a few hit pairing failures.

Frequently Asked Questions

Which is better overall: Eufy Water and Freeze Sensor or Moen Smart Leak Detector?

The Moen Smart Leak Detector is the better overall water leak sensor, winning on weather resistance, alerts, on-device alert sound and on-device alert light. The Eufy Water and Freeze Sensor wins on price and owner rating.

Does the Eufy Water and Freeze Sensor need a HomeBase?

Yes. It connects over Sub-1G to a eufy HomeBase 2, 3, S380 or S280 and cannot work without one. The Moen Smart Leak Detector needs no hub, joining 2.4 GHz Wi-Fi directly.

Does the Moen Smart Leak Detector sense humidity?

Yes, it monitors temperature and humidity and can alert when either falls outside the range you set. The Eufy Water and Freeze Sensor sends freeze alerts but offers no general temperature or humidity alerts.

Which sensor has a local alarm?

The Moen Smart Leak Detector has an on-device siren and LED. The Eufy Water and Freeze Sensor has neither, so its alarm comes from the HomeBase and shares the camera tone.

Who should buy the Moen Smart Leak Detector?

Buy the Moen Smart Leak Detector for hub-free IP67 Wi-Fi leak and freeze alerts with a local siren, an LED and a 48-inch sensing cable.

Who should buy the Eufy Water and Freeze Sensor?

Buy the Eufy Water and Freeze Sensor if you already own a eufy HomeBase and want a cheaper leak-and-freeze add-on with simple app alerts.

Full comparison table

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