Updated September 2026
Data from Amazon and official Aeotec and Arlo sites.
2026 verdict
The Arlo All-in-One Sensor wins this water leak sensor comparison as the cheaper option that also does more sensing, packing water-leak, temperature and tilt detection into one unit where the Aeotec Water Sensor 7 Pro covers water and temperature but no tilt. Its multi-sensor design suits Arlo households that want leak, freeze and motion-style tilt alerts from a single device, working with Alexa and Google Home through the Arlo Security System. The Aeotec Water Sensor 7 Pro remains the specialist's choice for hub-based automation: it runs on Z-Wave for SmartThings and Home Assistant, has a rated 3-year battery, and ships with a sensor cable for tight spots. Both are hub-dependent and lack an onboard siren. Choose the Arlo All-in-One Sensor for cheaper, broader all-in-one sensing inside an Arlo system; pick the Aeotec Water Sensor 7 Pro for Z-Wave automation, a long battery, and a probe cable.
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.
No spam. Unsubscribe in one click.
| Feature | Aeotec Water Sensor 7 Pro | Arlo All-in-One Sensor | Winner |
|---|---|---|---|
| Price | $29.99 | $27.90 | Arlo All-in-One Sensor |
| Rating | 4.1 | 4.0 | Aeotec Water Sensor 7 Pro |
| Integrations | Samsung SmartThings, Home Assistant | Google Home, Alexa, Samsung SmartThings | Arlo All-in-One Sensor |
| Sensors | Water Leak, Temperature | Water Leak, Temperature, Tilt | Arlo All-in-One Sensor |
| Weather Resistance | IP20 | NO | Different strengths |
| Warranty | 1 year | 1 year | Tie |
| Connectivity | Z-Wave | Other | Tie |
| Alerts | Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts | Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts | Tie |
| On Device Alert Sound | NO | NO | Tie |
| On Device Alert Light | NO | NO | Tie |
37% OFF
$29.99
$47.95
- + Rating: 4.1
- - Price: $29.99 vs $27.90
- - Integrations: Samsung SmartThings, Home Assistant vs Google Home, Alexa, Samsung SmartThings
Winner
7% OFF
$27.90
$29.99
- + Price: $27.90
- + Integrations: Google Home, Alexa, Samsung SmartThings
- + Sensors: Water Leak, Temperature, Tilt
- - Rating: 4.0 vs 4.1
Frequently Asked Questions
Which is better overall: Aeotec Water Sensor 7 Pro or Arlo All-in-One Sensor?
The Arlo All-in-One Sensor wins overall on price and its broader sensing, adding tilt detection alongside water and temperature. The Aeotec Water Sensor 7 Pro is better for Z-Wave automation, a long 3-year battery, and its included sensor cable.
What is the biggest difference between these two sensors?
Sensing mix and ecosystem. The Arlo All-in-One Sensor adds tilt detection and fits an Arlo Security System with Alexa and Google Home, while the Aeotec Water Sensor 7 Pro is a Z-Wave device for SmartThings and Home Assistant with a bundled sensor cable.
Which sensor detects more types of events?
The Arlo All-in-One Sensor does, with water-leak, temperature and tilt sensing in one unit. The Aeotec Water Sensor 7 Pro covers water and temperature but has no tilt sensor.
Do both sensors need a hub or base?
Yes. The Arlo All-in-One Sensor requires an Arlo Security System, and the Aeotec Water Sensor 7 Pro requires a Z-Wave hub such as SmartThings or Home Assistant. Neither works standalone.
Who should buy the Arlo All-in-One Sensor?
Buy it if you already run an Arlo system and want an affordable multi-sensor that covers water, temperature and tilt in a single device.
Who should buy the Aeotec Water Sensor 7 Pro?
Choose it if you run a Z-Wave hub with SmartThings or Home Assistant and want a long battery life, freeze and temperature alerts, and a sensor cable for hard-to-reach spots.
Full comparison table
Compare all 33 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.
- 33 Water Leak Sensors
- 36 specs compared
- 33 filters
YoLinkWater Leak Sensor 4
29% OFF$23.99$17.09
YoLinkWater Leak Sensor 1
$16.99
X-SenseWi-Fi Water Leak Detector
25% OFF$15.99$11.99
TP-LinkTapo T300
$19.99
ShellyFlood S Gen4
$27.99
AeotecWater Leak Sensor
$39.99
EufyWater and Freeze Sensor
$34.99
EveWater Guard
28% OFF$109.95$78.99
AqaraWater Leak Sensor T1
C$36.99
GoveeWater Leak Detector 2
14% OFF$69.99$59.99
SwitchBotWater Leak Detector
$16.99
GoveeWater Sensor Alarm
$15.99
SwitchBotWater Leak Detector (Sensor Cable Edition)
5% OFF$19.99$18.99
FibaroFlood Sensor (Z-Wave)
$62.04
SonoffZigbee Water Leak Sensor
$14.99
AqaraWater Leak Sensor
$18.99
ShellyFlood Gen4
$39.99
EufyFlood & Freeze Sensor E20
$39.99
HeimanSmart Water Leakage Sensor
20% OFF$19.99$15.99
FibaroFlood Sensor (HomeKit)
$43.28
DonglesAeotecZ-Stick 10 Pro
4.4(177)$59.99
DonglesAeotecZ-Stick 7
4.5(256)$39.99
DonglesAeotecZi-Stick
4.0(26)14% OFF$34.95$29.99
Door & Window SensorsAeotecDoor Window Sensor 7
4.2(47)$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
3.8(40)$149.99
Motion SensorsAeotecMotion Sensor
4.6(421)$48.99
Motion SensorsAeotecMultiSensor 7
3.8(113)29% OFF$69.99$49.99
Motion SensorsAeotecTriSensor 8
3.6(37)$39.99
PlugsAeotecSmart Switch 7
4.1(115)$69.94
RelaysAeotecPico Duo Switch
3.8(4)$34.95
RelaysAeotecPico Switch
3.5(12)$34.95
SirensAeotecSiren 6
3.4(379)50% OFF$79.99$39.99
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(37)$39.99
Wall SwitchesAeotecIllumino Dimmer Switch
3.6(25)23% OFF$47.99$36.99
CamerasArloEssential 2K Wired (2025)
3.9(119)20% OFF$49.99$39.99
CamerasArloEssential 2K (2nd Gen)
4.0(4,088)50% OFF$99.99$49.99
CamerasArloEssential HD (2nd Gen)
4.1(797)50% OFF$29.99$14.99
CamerasArloEssential Indoor 2K (2nd Gen)
4.2(1,595)$19.99
CamerasArloEssential Indoor HD (2nd Gen)
CamerasArloEssential Pan Tilt (Outdoor)
4.3(444)25% OFF$59.99$44.99
CamerasArloEssential Pan Tilt
4.4(569)30% OFF$49.99$34.99
CamerasArloEssential XL 2K (2nd Gen)
3.9(353)$108.47
CamerasArloEssential XL HD (2nd Gen)
3.8(69)€165.55
CamerasArloGo 2
3.4(319)20% OFF$199.99$159.99
CamerasArloPro 3 Floodlight
4.2(5,102)40% OFF$249.99$149.99
CamerasArloPro 5S 2K
3.5(3)$69.99
CamerasArloPro 6 XL
4.1(20)$199.99
CamerasArloPro 6
4.1(381)$124.00
CamerasArloUltra 2
4.0(478)24% OFF$249.00$189.99
CamerasArloWired Floodlight Camera
4.3(337)33% OFF$149.99$99.99
DoorbellsArloEssential Wireless Video Doorbell
4.3(491)$56.00
DoorbellsArloVideo Doorbell 2K (2nd gen)
4.0(1,711)38% OFF$79.99$49.99
DoorbellsArloVideo Doorbell HD (2nd gen)
4.2(301)$34.99
Door & Window SensorsArloAll-in-One Sensor
4.0(94)7% OFF$29.99$27.90