Winner
30% OFF
$20.99
$29.99
Updated November 2026
Data from the official Arlo and Moen sites.
2026 verdict
The Arlo All-in-One Sensor is the better fit for an Arlo household, packing water, temperature and tilt detection into one small puck that works with Google Home, Alexa and Samsung SmartThings.
The Moen Smart Leak Detector is the stronger stand-alone alarm, with an IP67 body, a 48-inch remote sensing disc and its own buzzer and light, but it has no tilt or tamper sensing and reports through the Moen app. Choose the Arlo if you already run an Arlo Security System, and the Moen when the sensor has to work without any hub.
Works with
vs
$54.72
Works with
Connectivity
- Wi-Fi 2.4 GHz
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| Feature | Arlo All-in-One Sensor | Moen Smart Leak Detector | Winner |
|---|---|---|---|
| Price | $20.99 | $54.72 | Arlo All-in-One Sensor |
| Rating | 4.1 | 3.3 | Arlo All-in-One Sensor |
| Weather Resistance | NO | IP67 | Moen Smart Leak Detector |
| Integrations | Google Home, Alexa, Samsung SmartThings | Home Assistant | Arlo All-in-One Sensor |
| Sensors | Water Leak, Temperature, Tilt | Water Leak, Temperature | Arlo All-in-One Sensor |
| On Device Alert Sound | NO | YES | Moen Smart Leak Detector |
| On Device Alert Light | NO | YES | Moen Smart Leak Detector |
| Warranty | 1 year | 1 year | Tie |
| Connectivity | Other | 2.4 GHz WiFi | Tie |
| Alerts | Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts | Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts | Tie |
What the differences mean
Hub
The Arlo All-in-One Sensor has no radio of its own and needs an Arlo Security System. The Moen Smart Leak Detector joins 2.4 GHz Wi-Fi directly.
Sensors
The Arlo All-in-One Sensor senses water, temperature and tilt, with freeze alerts. The Moen Smart Leak Detector senses water, temperature and humidity but has no tilt or tamper sensing.
Local alert
The Moen Smart Leak Detector has a buzzer and an alert light. The Arlo All-in-One Sensor has neither.
Remote probe
The Moen Smart Leak Detector includes a 48-inch remote sensing disc. The Arlo All-in-One Sensor has no probe and must sit at the leak.
Platforms
The Arlo All-in-One Sensor works with Google Home, Alexa and SmartThings. The Moen Smart Leak Detector lists no Google Home, SmartThings, HomeKit or Matter path and only partial Home Assistant support.
Weather rating
The Moen Smart Leak Detector is IP67 rated for damp spots. The Arlo All-in-One Sensor has no weather-resistance rating and is meant for dry, indoor use.
Which one to buy if
- you already run an Arlo Security System
The Arlo All-in-One Sensor extends the hub you own and adds water, freeze and tilt alerts.
- you want a sensor that works without a hub
The Moen Smart Leak Detector joins Wi-Fi directly and needs no gateway.
- you want tilt and tamper coverage
The Arlo All-in-One Sensor adds a tilt sensor; the Moen has none.
- you need a local siren at the leak
The Moen Smart Leak Detector has a buzzer and light; the Arlo All-in-One Sensor alerts only through the app.
- the leak is in a sump pit or tight space
The Moen Smart Leak Detector's 48-inch remote disc reaches where the body cannot.
Winner
30% OFF
$20.99
$29.99
- + Price: $20.99
- + Rating: 4.1
- + Integrations: Google Home, Alexa, Samsung SmartThings
- - Weather Resistance: NO vs IP67
- - On Device Alert Sound: NO vs YES
$54.72
- + Weather Resistance: IP67
- + On Device Alert Sound: YES
- + On Device Alert Light: YES
- - Price: $54.72 vs $20.99
- - Rating: 3.3 vs 4.1
What owners say
Owners of both sensors describe the core job getting done and setup that takes only minutes. Arlo All-in-One Sensor owners appreciate that it catches real leaks and slots into the Arlo app they already use, and that the water, freeze and tilt coverage comes in one small unit; a minority report battery drain faster than expected and the occasional false status flag. Moen Smart Leak Detector owners value the remote sensing disc and the temperature and humidity display, but a large share describe a difficult pairing process and units that arrived with the battery partly drained, and some find the alarm quiet. Both groups say the placement of the sensor is what decides how soon a leak is found.
Frequently Asked Questions
Which is better overall: Arlo All-in-One Sensor or Moen Smart Leak Detector?
For an existing Arlo household, the Arlo All-in-One Sensor, because it adds water, freeze and tilt alerts to the hub you already own. For a stand-alone sensor rated for damp spots with a remote probe and local alarm, the Moen Smart Leak Detector is the better choice.
Does the Arlo All-in-One Sensor need an Arlo hub?
Yes. The Arlo All-in-One Sensor has no standalone radio and needs an Arlo Security System to report anything, while the Moen Smart Leak Detector joins 2.4 GHz Wi-Fi on its own.
Which of these sensors has a local alarm?
The Moen Smart Leak Detector has a buzzer and an alert light. The Arlo All-in-One Sensor has neither, so a warning only arrives through the Arlo app.
Do the Arlo All-in-One Sensor and the Moen Smart Leak Detector sense tilt?
Only the Arlo All-in-One Sensor has a tilt sensor. The Moen Smart Leak Detector senses water, temperature and humidity but has no tilt or tamper detection.
Who should buy the Arlo All-in-One Sensor?
Existing Arlo Security System owners who want a compact add-on covering water, freeze and tilt inside the app they already use.
Who should buy the Moen Smart Leak Detector?
Buyers without a hub who want a Wi-Fi sensor rated IP67, with a 48-inch remote disc and a buzzer and light on the device.
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