Updated September 2026
Data from Amazon and official Eufy and Meross sites.
2026 verdict
Against leak-only sensing versus freeze alerts, an on-device alarm versus a silent puck, only the Meross Smart Water Leak Sensor still looks like the complete water leak sensor.
It also lands an on-device alarm, IP67 weather resistance, and wider smart-home integrations. Meross Smart Water Leak Sensor can sound an alarm in the room, whereas Eufy Water and Freeze Sensor stays quiet and leans on phone or hub alerts. Eufy Water and Freeze Sensor keeps 2 years of battery life, a wider sensor set, and richer alert options, so it remains the pick when that priority beats an on-device alarm. Choose the Meross Smart Water Leak Sensor for an on-device alarm; keep the Eufy Water and Freeze Sensor only when 2 years of battery life is the whole brief.
Price alerts
Water Leak Sensor prices change while you decide
We check the price of every Water Leak Sensor in the catalog daily and email you the drops, whichever one you pick.
| Feature | Eufy Water and Freeze Sensor | Meross Smart Water Leak Sensor | Winner |
|---|---|---|---|
| Price | $34.99 | $23.99 | Meross Smart Water Leak Sensor |
| Rating | 4.5 | 3.7 | Eufy Water and Freeze Sensor |
| Weather Resistance | NO | IP67 | Meross Smart Water Leak Sensor |
| Battery Life | 2 years | 1.5 years | Eufy Water and Freeze Sensor |
| Integrations | Home Assistant | Apple HomeKit, Samsung SmartThings, Home Assistant | Meross Smart Water Leak Sensor |
| Sensors | Water Leak, Temperature | Water Leak | Eufy Water and Freeze Sensor |
| Alerts | Water Leak Alerts, Freeze Temperature Alerts | Water Leak Alerts | Eufy Water and Freeze Sensor |
| On Device Alert Sound | NO | YES | Meross Smart Water Leak Sensor |
| Warranty | 1 year | 1 year | Tie |
| Connectivity | 2.4 GHz WiFi | Other | Tie |
| On Device Alert Light | NO | NO | Tie |
$34.99
- + Rating: 4.5
- + Battery Life: 2 years
- + Sensors: Water Leak, Temperature
- - Price: $34.99 vs $23.99
- - Weather Resistance: NO vs IP67
Winner
$23.99
- + Price: $23.99
- + Weather Resistance: IP67
- + Integrations: Apple HomeKit, Samsung SmartThings, Home Assistant
- - Rating: 3.7 vs 4.5
- - Battery Life: 1.5 years vs 2 years
Frequently Asked Questions
Which is better overall: Eufy Water and Freeze Sensor or Meross Smart Water Leak Sensor?
The Meross Smart Water Leak Sensor is better overall as a water leak sensor. It wins on an on-device alarm, IP67 weather resistance, and wider smart-home integrations. The Eufy Water and Freeze Sensor is the alternative when you want 2 years of battery life and a wider sensor set.
What is the biggest difference between the Eufy Water and Freeze Sensor and the Meross Smart Water Leak Sensor?
Freeze coverage. Eufy Water and Freeze Sensor can alert on low temperature as well as leaks, while Meross Smart Water Leak Sensor is leak-only.
Which water leak sensor lasts longer on batteries, the Eufy Water and Freeze Sensor or the Meross Smart Water Leak Sensor?
Meross Smart Water Leak Sensor is rated for 1.5 years, and Eufy Water and Freeze Sensor is rated for 2 years. That is the published battery spec, not a store claim.
Can the Eufy Water and Freeze Sensor and the Meross Smart Water Leak Sensor warn about freezing pipes?
Meross Smart Water Leak Sensor does not list freeze alerts. Eufy Water and Freeze Sensor publishes freeze alerts. If basement freeze coverage is the reason you are shopping, pick the sensor that actually publishes that alert.
Who should buy the Eufy Water and Freeze Sensor?
Buy the Eufy Water and Freeze Sensor if 2 years of battery life is the priority, along with a wider sensor set and richer alert options. 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 IP67 weather resistance and wider smart-home integrations. Choose the Eufy Water and Freeze Sensor instead when 2 years of battery life matters more than those extras.
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.
- 32 Water Leak Sensors
- 36 specs compared
- 33 filters
YoLinkWater Leak Sensor 4
17% OFF$23.99$19.99
ShellyFlood S Gen4
$27.99
YoLinkWater Leak Sensor 1
10% OFF$16.99$15.29
X-SenseWi-Fi Water Leak Detector
$15.99
TP-LinkTapo T300
15% OFF$19.99$16.99
SwitchBotWater Leak Detector
$16.99
AeotecWater Leak Sensor
$39.99- Eufy
Water and Freeze Sensor
$34.99 
EveWater Guard
$109.95
AqaraWater Leak Sensor T1
C$36.99
GoveeWater Leak Detector 2
$69.99
SwitchBotWater Leak Detector (Sensor Cable Edition)
10% OFF$19.99$17.99
FibaroFlood Sensor (Z-Wave)
16% OFF$78.53$66.12
SonoffZigbee Water Leak Sensor
$14.99
AqaraWater Leak Sensor
$18.99
GoveeWater Sensor Alarm
$15.99
ShellyFlood Gen4
$39.99
HeimanSmart Water Leakage Sensor
20% OFF$19.99$15.99
FibaroFlood Sensor (HomeKit)
$43.28
AeotecWater Sensor 7 Pro
$47.95
CamerasEufy4G Camera S230
4.0(197)$109.99
CamerasEufy4G LTE Cam S330
4.0(1,240)20% OFF$249.99$199.99
CamerasEufyCam S3 Pro
4.4(299)$219.99
CamerasEufyCam S330
4.3(961)32% OFF$219.99$149.99
CamerasEufyCam S4
4.2(461)$349.99
CamerasEufyIndoor Cam C120
4.3(589)$29.99
CamerasEufyIndoor Cam E220
4.4(21,448)9% OFF$54.99$49.99
CamerasEufyIndoor Cam E30
4.4(2,366)21% OFF$69.99$54.98
CamerasEufyOutdoor Cam E210
4.4(1,639)$59.99
CamerasEufyOutdoor Cam E220
4.2(2,043)$79.00
CamerasEufyPoE Bullet-PTZ Cam E50
$249.99
CamerasEufySoloCam E30
4.3(1,297)33% OFF$149.99$99.94
CamerasEufySoloCam E42
4.2(1,123)33% OFF$179.99$119.97
CamerasEufySoloCam S220
4.2(6,595)30% OFF$99.99$69.99
CamerasEufySoloCam S230
4.4(147)$129.99
CamerasEufySoloCam S340
4.2(6,871)30% OFF$199.99$139.99
CamerasEufyTrackLight Cam S1
$299.99
CamerasEufyWall Light Cam S4
3.9(17)$249.99
CamerasEufyWired Cam C31
4.3(741)23% OFF$59.99$45.99
DoorbellsEufyVideo Doorbell C31 (with Battery Pack)
4.0(830)$129.99
Door & Window SensorsMerossSmart Door and Window Sensor
3.0(36)18% OFF$21.99$17.99
Energy MonitorsMerossEM06P
4.2(143)
Energy MonitorsMerossEM16P
4.2(43)10% OFF$199.99$179.99
Garage Door OpenersMerossMSG100 Smart Garage Door Opener
4.2(6,662)15% OFF$49.99$42.49
HubsMerossSmart Wi-Fi Hub MSH400HK
HubsMerossSmart Wi-Fi Hub MSH450
4.2(190)€24.99
LED BulbsMerossSmart Wi-Fi LED Bulb
4.0(792)$17.04
LED BulbsMerossSmart Wi-Fi LED Bulb with Dimmable Light
4.2(338)$44.64
PlugsMerossMatter Smart Plug Mini
4.2(208)$17.99
PlugsMerossOutdoor Smart Plug (3 Sockets)
4.4(4,748)10% OFF$30.99$27.89
PlugsMerossOutdoor Smart Plug
4.4(3,957)10% OFF$25.99$23.39
PlugsMerossSmart Wi-Fi Plug
4.3(3,154)$21.99
Presence SensorsMerossPresence Sensor MS605
3.0(82)6% OFF$27.59$25.99
Presence SensorsMerossSmart Presence Sensor
3.9(113)$33.99
Radiator ValvesMerossSmart Thermostat Valve
3.8(980)€28.41
RelaysMerossMatter Smart DIY Switch with Energy Monitor
4.4(2,763)15% OFF£19.99£16.99
Temperature & Humidity SensorsMerossSmart Temperature and Humidity Sensor
3.6(88)$14.99
ThermostatsMerossMTS300 Smart Thermostat
3.8(815)5% OFF$62.99$59.84
Water Leak SensorsMerossSmart Water Leak Sensor
3.7(41)$23.99
Water ValvesMerossSmart Sprinkler Timer
4.0(29)19% OFF$56.99$45.99