Updated September 2026
Data from Amazon and official Aeotec and Meross sites.
2026 verdict
Stack leak-only sensing versus freeze alerts, an on-device alarm versus a silent puck and you get the Meross Smart Water Leak Sensor as the water leak sensor that leads on an on-device alarm plus IP67 weather resistance.
Add IP67 weather resistance, 1.5 years of battery life, and wider smart-home integrations and the gap is structural, not a sale price. Meross Smart Water Leak Sensor can sound an alarm in the room, whereas Aeotec Water Leak Sensor stays quiet and leans on phone or hub alerts. Aeotec Water Leak Sensor keeps a wider sensor set, richer alert options, and the stronger owner reviews, so it remains the pick when that priority beats an on-device alarm. Shop the Meross Smart Water Leak Sensor unless a wider sensor set is the only thing you came for, in which case the Aeotec Water Leak Sensor is enough.
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 | Aeotec Water Leak Sensor | Meross Smart Water Leak Sensor | Winner |
|---|---|---|---|
| Price | $39.99 | $23.99 | Meross Smart Water Leak Sensor |
| Rating | 4.5 | 3.7 | Aeotec Water Leak Sensor |
| Weather Resistance | IP20 | IP67 | Meross Smart Water Leak Sensor |
| Battery Life | 1 year | 1.5 years | Meross Smart Water Leak Sensor |
| Integrations | Samsung SmartThings, Home Assistant | Apple HomeKit, Samsung SmartThings, Home Assistant | Meross Smart Water Leak Sensor |
| Sensors | Water Leak, Temperature | Water Leak | Aeotec Water Leak Sensor |
| Alerts | Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts | Water Leak Alerts | Aeotec Water Leak Sensor |
| On Device Alert Sound | NO | YES | Meross Smart Water Leak Sensor |
| Warranty | 1 year | 1 year | Tie |
| Connectivity | Zigbee | Other | Tie |
| On Device Alert Light | NO | NO | Tie |
$39.99
- + Rating: 4.5
- + Sensors: Water Leak, Temperature
- + Alerts: Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts
- - Price: $39.99 vs $23.99
- - Weather Resistance: IP20 vs IP67
Winner
$23.99
- + Price: $23.99
- + Weather Resistance: IP67
- + Battery Life: 1.5 years
- - Rating: 3.7 vs 4.5
- - Sensors: Water Leak vs Water Leak, Temperature
Frequently Asked Questions
Which is better overall: Aeotec Water Leak 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 1.5 years of battery life. The Aeotec Water Leak Sensor is the alternative when you want a wider sensor set and richer alert options.
What is the biggest difference between the Aeotec Water Leak Sensor and the Meross Smart Water Leak Sensor?
Freeze coverage. Aeotec Water Leak 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 Aeotec Water Leak Sensor or the Meross Smart Water Leak Sensor?
Meross Smart Water Leak Sensor is rated for 1.5 years, and Aeotec Water Leak Sensor is rated for 1 year. That is the published battery spec, not a store claim.
Can the Aeotec Water Leak Sensor and the Meross Smart Water Leak Sensor warn about freezing pipes?
Meross Smart Water Leak Sensor does not list freeze alerts. Aeotec Water Leak Sensor lists freeze alerts as YES. If basement freeze coverage is the reason you are shopping, pick the sensor that actually publishes that alert.
Who should buy the Aeotec Water Leak Sensor?
Buy the Aeotec Water Leak Sensor if a wider sensor set is the priority, along with richer alert options 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 IP67 weather resistance and 1.5 years of battery life. Choose the Aeotec Water Leak Sensor instead when a wider sensor set 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- Aeotec
Water Leak Sensor
$39.99 
EufyWater 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
DonglesAeotecZ-Stick 10 Pro
4.4(175)$59.99
DonglesAeotecZ-Stick 7
4.5(256)$39.99
DonglesAeotecZi-Stick
4.0(27)14% OFF$34.95$29.99
Door & Window SensorsAeotecDoor Window Sensor 7
3.7(111)$34.99
Door & Window SensorsAeotecMultipurpose Sensor
4.5(366)$38.99
Door & Window SensorsAeotecRecessed Door Sensor 7
3.8(353)8% OFF$39.99$36.99
Energy MonitorsAeotecHome Energy Meter 8
4.2(24)$95.99
HubsAeotecSmart Home Hub 2
3.8(40)$129.99
HubsAeotecSmart Home Hub
4.2(2,138)$149.99
Motion SensorsAeotecMotion Sensor
4.6(421)$48.99
Motion SensorsAeotecMultiSensor 7
3.8(112)$69.99
Motion SensorsAeotecTriSensor 8
3.6(38)$39.99
PlugsAeotecSmart Switch 7
4.1(115)$69.94
RelaysAeotecPico Duo Switch
3.8(4)$34.95
RelaysAeotecPico Switch
3.6(13)$34.95
SirensAeotecSiren 6
3.4(379)$79.99
Temperature & Humidity SensorsAeotecaerQ Temperature & Humidity Sensor
3.5(173)$34.99
Temperature & Humidity SensorsAeotecMultipurpose Sensor
4.5(366)$38.99
Temperature & Humidity SensorsAeotecTriSensor 8
3.6(38)$39.99
Wall SwitchesAeotecIllumino Dimmer Switch
3.6(25)23% OFF$47.99$36.99
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