Heiman Smart Water Leakage Sensor vs Resideo L1 WiFi Water Leak and Freeze Detector

Updated September 2026

Data from Amazon and official Heiman and Honeywell Home sites.

2026 verdict

Heiman Wi-Fi runtime versus Resideo line coverage?

Winner

Heiman Smart Water Leakage Sensor

$15.99$19.9920% OFF

Buy on Amazon USA

The Heiman Smart Water Leakage Sensor is the better water leak sensor here, winning on the more affordable price, the stronger owner reviews and IP67 weather sealing. The Resideo L1 WiFi Water Leak and Freeze Detector still holds a 2-year warranty, broader connectivity and a wider sensor set. The Heiman Smart Water Leakage Sensor is the better value water leak sensor, with IP67 sealing, a 5-year battery, a status light and Home Assistant; the Resideo L1 WiFi Water Leak and Freeze Detector is the freeze-and-cable specialist with a 2-year warranty.

Winner

Heiman

Heiman Smart Water Leakage Sensor

20% OFF

$15.99

$19.99

Buy on Amazon USA Buy on Amazon Canada

Honeywell Home

Resideo L1 WiFi Water Leak and Freeze Detector

$68.00

Buy on Amazon USA

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Feature	Heiman Smart Water Leakage Sensor	Resideo L1 WiFi Water Leak and Freeze Detector	Winner
Price	$15.99	$68.00	Heiman Smart Water Leakage Sensor
Rating	4.2	3.7	Heiman Smart Water Leakage Sensor
Warranty	1 year	2 years	Resideo L1 WiFi Water Leak and Freeze Detector
Weather Resistance	IP67	IP44	Heiman Smart Water Leakage Sensor
Battery Life	5 years	2 years	Heiman Smart Water Leakage Sensor
Connectivity	2.4 GHz WiFi	2.4 GHz WiFi, Bluetooth	Resideo L1 WiFi Water Leak and Freeze Detector
Integrations	Samsung SmartThings, Home Assistant	None	Heiman Smart Water Leakage Sensor
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	YES	YES	Tie
On Device Alert Light	YES	YES	Tie

Winner

Heiman

Heiman Smart Water Leakage Sensor

20% OFF

$15.99

$19.99

Buy on Amazon USA Buy on Amazon Canada

+ Price: $15.99
+ Rating: 4.2
+ Weather Resistance: IP67
- Warranty: 1 year vs 2 years
- Connectivity: 2.4 GHz WiFi vs 2.4 GHz WiFi, Bluetooth

Honeywell Home

Resideo L1 WiFi Water Leak and Freeze Detector

$68.00

Buy on Amazon USA

+ Warranty: 2 years
+ Connectivity: 2.4 GHz WiFi, Bluetooth
+ Sensors: Water Leak, Temperature
- Price: $68.00 vs $15.99
- Rating: 3.7 vs 4.2

Frequently Asked Questions

Which is better overall, the Heiman Smart Water Leakage Sensor or the Resideo L1 WiFi Water Leak and Freeze Detector?

The Heiman Smart Water Leakage Sensor is better overall, winning on the more affordable price, the stronger owner reviews and IP67 weather sealing. The Resideo L1 WiFi Water Leak and Freeze Detector still leads on a 2-year warranty and broader connectivity.

What is the biggest difference between the Heiman Smart Water Leakage Sensor and the Resideo L1 WiFi Water Leak and Freeze Detector?

The Resideo L1 WiFi Water Leak and Freeze Detector is built around a 5 ft sensing cable, freeze tracking and a 100 dBA buzzer plus blinking red LED. The Heiman Smart Water Leakage Sensor answers with the more affordable price, the stronger owner reviews and IP67 weather sealing.

Which has the longer warranty, the Heiman Smart Water Leakage Sensor or the Resideo L1 WiFi Water Leak and Freeze Detector?

The Resideo L1 WiFi Water Leak and Freeze Detector is covered for 2 years, against 1 year on the Heiman Smart Water Leakage Sensor.

Which of the Heiman Smart Water Leakage Sensor and the Resideo L1 WiFi Water Leak and Freeze Detector works with more smart home platforms?

The Heiman Smart Water Leakage Sensor reaches Samsung SmartThings, 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 Heiman Smart Water Leakage Sensor?

Most people comparing these two water leak sensors, because the Heiman Smart Water Leakage Sensor wins on the more affordable price and the stronger owner reviews.

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

Buyers who specifically want a 2-year warranty and broader connectivity, even though the Heiman Smart Water Leakage Sensor wins overall.

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.