Flume 2 Smart Water Monitor vs Resideo L1 WiFi Water Leak and Freeze Detector

Updated September 2026

Data from Amazon and official Flume and Honeywell Home sites.

2026 verdict

Meter clamp versus a freeze puck? Between these two water leak sensors, the Resideo L1 WiFi Water Leak and Freeze Detector is the one to buy, thanks to the more affordable price, a wider sensor set and more alert types.

Winner

Resideo L1 WiFi Water Leak and Freeze Detector

$68.00

Buy on Amazon USA

That leaves the Flume 2 Smart Water Monitor as the specialist on the stronger owner reviews and broader smart home integrations. Buy the Resideo L1 WiFi Water Leak and Freeze Detector for a local 100 dBA buzzer, a sensing cable and freeze alerts at one site; buy the Flume 2 Smart Water Monitor to watch the whole meter and keep Alexa plus Google Home in the loop.

Flume

Flume 2 Smart Water Monitor

$199.00

Buy on Amazon USA

Winner

Honeywell Home

Resideo L1 WiFi Water Leak and Freeze Detector

$68.00

Buy on Amazon USA

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Feature	Flume 2 Smart Water Monitor	Resideo L1 WiFi Water Leak and Freeze Detector	Winner
Price	$199.00	$68.00	Resideo L1 WiFi Water Leak and Freeze Detector
Rating	4.0	3.7	Flume 2 Smart Water Monitor
Integrations	Google Home, Alexa, Home Assistant	None	Flume 2 Smart Water Monitor
Sensors	Water Leak	Water Leak, Temperature	Resideo L1 WiFi Water Leak and Freeze Detector
Alerts	Water Leak Alerts, Low Battery Alerts	Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts	Resideo L1 WiFi Water Leak and Freeze Detector
On Device Alert Sound	NO	YES	Resideo L1 WiFi Water Leak and Freeze Detector
On Device Alert Light	NO	YES	Resideo L1 WiFi Water Leak and Freeze Detector
Weather Resistance	YES	IP44	Tie
Connectivity	2.4 GHz WiFi, Other	2.4 GHz WiFi, Bluetooth	Tie

Flume

Flume 2 Smart Water Monitor

$199.00

Buy on Amazon USA

+ Rating: 4.0
+ Integrations: Google Home, Alexa, Home Assistant
- Price: $199.00 vs $68.00
- Sensors: Water Leak vs Water Leak, Temperature

Winner

Honeywell Home

Resideo L1 WiFi Water Leak and Freeze Detector

$68.00

Buy on Amazon USA

+ Price: $68.00
+ Sensors: Water Leak, Temperature
+ Alerts: Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts
- Rating: 3.7 vs 4.0
- Integrations: None vs Google Home, Alexa, Home Assistant

Frequently Asked Questions

Which comes out ahead, Flume 2 Smart Water Monitor or Resideo L1 WiFi Water Leak and Freeze Detector?

The Resideo L1 WiFi Water Leak and Freeze Detector is better overall, winning on the more affordable price, a wider sensor set and more alert types. The Flume 2 Smart Water Monitor still leads on the stronger owner reviews and broader smart home integrations.

What separates the Flume 2 Smart Water Monitor from the Resideo L1 WiFi Water Leak and Freeze Detector?

The structural gap is that the Resideo L1 WiFi Water Leak and Freeze Detector brings a 5 ft sensing cable, freeze tracking and a 100 dBA buzzer plus blinking red LED, while the Flume 2 Smart Water Monitor is a direct 2.4 GHz Wi-Fi water leak sensor with third-party smart home support.

Which has the longer warranty, the Flume 2 Smart Water Monitor or the Resideo L1 WiFi Water Leak and Freeze Detector?

The Flume 2 Smart Water Monitor is covered for ?, against 2 years on the Resideo L1 WiFi Water Leak and Freeze Detector.

Which of the Flume 2 Smart Water Monitor and the Resideo L1 WiFi Water Leak and Freeze Detector works with more smart home platforms?

The Flume 2 Smart Water Monitor reaches Google Home, Alexa, Home Assistant. The Resideo L1 WiFi Water Leak and Freeze Detector has no third-party smart home integrations and stays in its own app.

Who should buy the Flume 2 Smart Water Monitor?

Buyers who specifically want the stronger owner reviews and broader smart home integrations, even though the Resideo L1 WiFi Water Leak and Freeze Detector wins overall.

Who should buy the Resideo L1 WiFi Water Leak and Freeze Detector?

Most people comparing these two water leak sensors, because the Resideo L1 WiFi Water Leak and Freeze Detector wins on the more affordable price and a wider sensor set.

Full comparison table

Compare all 32 Water Leak Sensors side by side

You are looking at two of them. The full table lines up all Water Leak Sensors in the catalog with the same specs, so you can filter by what you need and sort by price or rating.