Flume 2 Smart Water Monitor vs Meross Smart Water Leak Sensor

Updated September 2026

Data from Amazon and official Flume and Meross sites.

2026 verdict

A silent puck versus an on-device alarm, listed weather resistance versus IP67 weather resistance is why households should take the Flume 2 Smart Water Monitor as this water leak sensor.

Winner

Flume 2 Smart Water Monitor

$199.00

Buy on Amazon USA

That same sheet lists richer alert options, a broader connectivity mix, and the stronger owner reviews. The radios differ too: Flume 2 Smart Water Monitor uses YES, and Meross Smart Water Leak Sensor uses Sub-1G (Smart Wi-Fi Hub required). Meross Smart Water Leak Sensor keeps an on-device alarm and the more affordable option, so it remains the pick when that priority beats richer alert options. The practical recommendation is the Flume 2 Smart Water Monitor for the fuller water leak sensor spec, with the Meross Smart Water Leak Sensor reserved for buyers who prize an on-device alarm.

Winner

Flume

Flume 2 Smart Water Monitor

$199.00

Buy on Amazon USA

Meross

Meross Smart Water Leak Sensor

$23.99

Buy on Amazon USA

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Feature	Flume 2 Smart Water Monitor	Meross Smart Water Leak Sensor	Winner
Price	$199.00	$23.99	Meross Smart Water Leak Sensor
Rating	4.0	3.7	Flume 2 Smart Water Monitor
Connectivity	2.4 GHz WiFi, Other	Other	Flume 2 Smart Water Monitor
Alerts	Water Leak Alerts, Low Battery Alerts	Water Leak Alerts	Flume 2 Smart Water Monitor
On Device Alert Sound	NO	YES	Meross Smart Water Leak Sensor
Weather Resistance	YES	IP67	Tie
Integrations	Google Home, Alexa, Home Assistant	Apple HomeKit, Samsung SmartThings, Home Assistant	Tie
Sensors	Water Leak	Water Leak	Tie
On Device Alert Light	NO	NO	Tie

Winner

Flume

Flume 2 Smart Water Monitor

$199.00

Buy on Amazon USA

+ Rating: 4.0
+ Connectivity: 2.4 GHz WiFi, Other
+ Alerts: Water Leak Alerts, Low Battery Alerts
- Price: $199.00 vs $23.99
- On Device Alert Sound: NO vs YES

Meross

Meross Smart Water Leak Sensor

$23.99

Buy on Amazon USA

+ Price: $23.99
+ On Device Alert Sound: YES
- Rating: 3.7 vs 4.0
- Connectivity: Other vs 2.4 GHz WiFi, Other

Frequently Asked Questions

Which is better overall: Flume 2 Smart Water Monitor or Meross Smart Water Leak Sensor?

The Flume 2 Smart Water Monitor is better overall as a water leak sensor. It wins on richer alert options, a broader connectivity mix, and the stronger owner reviews. The Meross Smart Water Leak Sensor is the alternative when you want an on-device alarm and the more affordable option.

What is the biggest difference between the Flume 2 Smart Water Monitor and the Meross Smart Water Leak Sensor?

How you hear the leak. Meross Smart Water Leak Sensor has an on-device alarm, and Flume 2 Smart Water Monitor stays silent on the puck itself.

Which water leak sensor is more weather resistant, the Flume 2 Smart Water Monitor or the Meross Smart Water Leak Sensor?

Flume 2 Smart Water Monitor is listed at YES, and Meross Smart Water Leak Sensor is listed at IP67. Use the higher ingress rating for damp crawlspaces and sump pits.

Who should buy the Flume 2 Smart Water Monitor?

Buy the Flume 2 Smart Water Monitor if richer alert options is the priority, along with a broader connectivity mix and the stronger owner reviews. Choose the Meross Smart Water Leak Sensor instead when an on-device alarm matters more than those extras.

Who should buy the Meross Smart Water Leak Sensor?

Buy the Meross Smart Water Leak Sensor if an on-device alarm is the priority, along with the more affordable option. Choose the Flume 2 Smart Water Monitor instead when richer alert options matters more than those extras.

Full comparison table

Compare all 32 Water Leak Sensors side by side

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