Flume 2 Smart Water Monitor vs Moen Smart Leak Detector

Updated September 2026

Data from Amazon and official Flume and Moen sites.

2026 verdict

Whole-home pipe monitoring is a different product, but the Moen Smart Leak Detector still wins this water leak sensor comparison on price, sensors, alerts, an on-device siren and an alert light.

Winner

Moen Smart Leak Detector

$51.00$54.877% OFF

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It sits on the floor, watches puddles plus temperature, and beeps on site. The Flume 2 Smart Water Monitor clamps to the meter, wins on owner rating, connectivity and integrations (Google Home, Alexa, Home Assistant), and never sits in a puddle. Choose the Moen Smart Leak Detector for a local puddle-and-freeze alarm; choose the Flume 2 Smart Water Monitor if you want whole-home flow monitoring at the water meter.

Flume

Flume 2 Smart Water Monitor

$199.00

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Winner

Moen

Moen Smart Leak Detector

7% OFF

$51.00

$54.87

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Feature	Flume 2 Smart Water Monitor	Moen Smart Leak Detector	Winner
Price	$199.00	$51.00	Moen Smart Leak Detector
Rating	4.0	3.3	Flume 2 Smart Water Monitor
Connectivity	2.4 GHz WiFi, Other	2.4 GHz WiFi	Flume 2 Smart Water Monitor
Integrations	Google Home, Alexa, Home Assistant	Alexa, Home Assistant	Flume 2 Smart Water Monitor
Sensors	Water Leak	Water Leak, Temperature	Moen Smart Leak Detector
Alerts	Water Leak Alerts, Low Battery Alerts	Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts	Moen Smart Leak Detector
On Device Alert Sound	NO	YES	Moen Smart Leak Detector
On Device Alert Light	NO	YES	Moen Smart Leak Detector
Weather Resistance	YES	IP67	Tie

Flume

Flume 2 Smart Water Monitor

$199.00

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+ Rating: 4.0
+ Connectivity: 2.4 GHz WiFi, Other
+ Integrations: Google Home, Alexa, Home Assistant
- Price: $199.00 vs $51.00
- Sensors: Water Leak vs Water Leak, Temperature

Winner

Moen

Moen Smart Leak Detector

7% OFF

$51.00

$54.87

Buy on Amazon USACheck price

+ Price: $51.00
+ Sensors: Water Leak, Temperature
+ Alerts: Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts
- Rating: 3.3 vs 4.0
- Connectivity: 2.4 GHz WiFi vs 2.4 GHz WiFi, Other

Frequently Asked Questions

Which is better overall: Flume 2 Smart Water Monitor or Moen Smart Leak Detector?

The Moen Smart Leak Detector is the better overall water leak sensor. It wins on price, sensors, alerts, on-device alert sound and on-device alert light. The Flume 2 Smart Water Monitor wins on rating, connectivity and integrations.

What is the biggest difference between the Flume 2 Smart Water Monitor and the Moen Smart Leak Detector?

Where they sit. The Flume 2 Smart Water Monitor clamps to the water meter and watches whole-home flow. The Moen Smart Leak Detector is a floor sensor with a puddle probe, temperature and freeze alerts, plus a local siren.

Does the Flume 2 Smart Water Monitor have an on-device siren?

No. The Flume 2 Smart Water Monitor has no on-device alert sound or light. The Moen Smart Leak Detector sounds a local alarm and blinks an LED.

Who should buy the Moen Smart Leak Detector?

Buy the Moen Smart Leak Detector to watch a specific spot (sump, washer, water heater) for puddles and freeze risk with a local alarm.

Who should buy the Flume 2 Smart Water Monitor?

Buy the Flume 2 Smart Water Monitor if you want meter-level whole-home leak monitoring with Google Home, Alexa and Home Assistant.

Full comparison table

Compare all 32 Water Leak Sensors side by side

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