Winner
Updated September 2026
Data from Amazon and official Centralite and Moen sites.
2026 verdict
Three-year Zigbee freeze sensing is the value play: the Centralite 3-Series Water Sensor is the better overall water leak sensor, winning on price, owner rating, 3-year battery life and alerts.
It is a leak-and-freeze Zigbee node for SmartThings and Home Assistant. The Moen Smart Leak Detector still takes weather resistance, an on-device siren and an alert light on hub-free Wi-Fi. Pick the Centralite 3-Series Water Sensor for a cheap long-life Zigbee freeze disc; pick the Moen Smart Leak Detector if you want a waterproof local alarm without a Zigbee hub.
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| Feature | Centralite 3-Series Water Sensor | Moen Smart Leak Detector | Winner |
|---|---|---|---|
| Price | $19.95 | $51.00 | Centralite 3-Series Water Sensor |
| Rating | 3.8 | 3.3 | Centralite 3-Series Water Sensor |
| Weather Resistance | NO | IP67 | Moen Smart Leak Detector |
| Battery Life | 3 years | 2 years | Centralite 3-Series Water Sensor |
| Alerts | Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Low Battery Alerts | Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts | Centralite 3-Series Water Sensor |
| On Device Alert Sound | NO | YES | Moen Smart Leak Detector |
| On Device Alert Light | NO | YES | Moen Smart Leak Detector |
| Warranty | 1 year | 1 year | Tie |
| Connectivity | Zigbee | 2.4 GHz WiFi | Tie |
| Integrations | Samsung SmartThings, Home Assistant | Alexa, Home Assistant | Tie |
| Sensors | Water Leak, Temperature | Water Leak, Temperature | Tie |
Winner
- + Price: $19.95
- + Rating: 3.8
- + Battery Life: 3 years
- - Weather Resistance: NO vs IP67
- - On Device Alert Sound: NO vs YES
7% OFF
$51.00
$54.87
- + Weather Resistance: IP67
- + On Device Alert Sound: YES
- + On Device Alert Light: YES
- - Price: $51.00 vs $19.95
- - Rating: 3.3 vs 3.8
Frequently Asked Questions
Which is better overall: Centralite 3-Series Water Sensor or Moen Smart Leak Detector?
The Centralite 3-Series Water Sensor is the better overall water leak sensor. It wins on price, rating, battery life and alerts. The Moen Smart Leak Detector wins on weather resistance, on-device alert sound and on-device alert light.
Does the Centralite 3-Series Water Sensor need a hub?
Yes. The Centralite 3-Series Water Sensor is Zigbee and needs a hub. The Moen Smart Leak Detector joins 2.4 GHz Wi-Fi directly.
Does the Centralite 3-Series Water Sensor have a local siren?
No. The Centralite 3-Series Water Sensor has no on-device alert sound or light. The Moen Smart Leak Detector has both.
Who should buy the Centralite 3-Series Water Sensor?
Buy the Centralite 3-Series Water Sensor for a cheaper Zigbee leak-and-freeze sensor with a 3-year battery in SmartThings or Home Assistant.
Who should buy the Moen Smart Leak Detector?
Buy the Moen Smart Leak Detector if you want an IP67 Wi-Fi leak and freeze sensor with a local siren and no Zigbee hub.
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
SwitchBotWater Leak Detector
$16.99
AeotecWater Leak Sensor
$39.99
EufyWater and Freeze Sensor
$34.99
EveWater Guard
$109.95
AqaraWater Leak Sensor T1
C$36.99
ShellyFlood S Gen4
$27.99
GoveeWater Leak Detector 2
14% OFF$69.99$59.99
GoveeWater Sensor Alarm
$15.99
SwitchBotWater Leak Detector (Sensor Cable Edition)
10% OFF$19.99$17.99
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
