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Protect your belongings at any time, from anywhere
The Sedna DS smart detector looks after your smart home without rest
24/7 protection*
Keep a close eye at all times on those places presenting a risk for water damage or frost
4-ft remote sensor
Install the detector then place the sensor in the most hard‑to‑reach places
Sound alarm, email and push notifications*
You’re notified whenever there’s a leak or frost or when batteries are low
Identify the source right away*
Name each detector in the app to know where the leak comes from as soon as it is detected

Protect your home from water damages
A simplified protection within your reach.
Sedna – Smart protection system**
A leak is detected? Your water inlet is automatically closed to avoid any damage
Gold-plated detection electrodes
The detector is made to counteract oxidation
Ultraprecise sensors
The detectors accurately detect a minimum water level of 0.4 mm (0.015 inches)
Battery powered (included)
Place your detectors wherever you want: they will work even during a power outage

The Sinopé smart home
Protect your belongings and stay in control. A smart solution is now within your reach.
The Sinopé smart home
Protect your belongings and stay in control. A smart solution is now within your reach.
*Requires a Sinopé smart valve or Zigbee-compatible system, a permanent Internet connection, and the Neviweb app available on the App Store and Google Play. ** Requires a Sinopé smart water valve.
Size
Detector:
Height: 0.75 in (1.91 cm)
Width: 2.5 in (6.37 cm)
Depth: 2.5 in (6.37 cm)
Sensor:
Height: 0.5 in (1.31 cm)
Width: 2.07 in (5.26 cm)
Cable length: 4 ft (121.92 cm)
Depth: 1.7 in (4.3 cm)
Compatibility
The smart water leak detector with remote sensor can be paired with Sinopé’s ¾ or 1-inch valve, the GT130 gateway or with a compatible Zigbee system.
* Indoor installation only.
Recommended locations for the water leak detectors
Near:
- Dishwasher
- Washing machine
- Water heater
- Drain pump
- Refrigerator
- Sink
- Toilet
- Water softener
- Bathtub
Locations with freezing hazards:
- Wine cellar
- Pipes
- In a cottage or a second home left unattended
Features
- Sound alarm, email or push notification sent notifying of a water leak, a temperature drop, or when the batteries are low*
- Communicates with the Sinopé's Sedna smart water valve to close the main water supply as soon as a leak is detected*
- Ultraprecise captors detecting a minimum water level of 0.015 in (0.4 mm)
- Gold-plated detection electrodes to counteract oxidation
- Battery-powered (included) for continuous operation
- Possibility to fix the detector and the sensor to prevent them from being moved
- Sensor facilitating water leak detection in hard-to-reach places
- Each detector can be renamed and connected to a Sinopé valve or a compatible Zigbee system allowing the easy identification of the source of the leak
*Requires a Sinopé smart valve, a GT130 gateway or Zigbee-compatible system, a permanent Internet connection, and the Neviweb app available on the App Store and Google Play.
Connectivity requirements
Requires:
- Sinopé’s Sedna smart water valve, a GT130 gateway or Zigbee-compatible hub
- Permanent Internet connection
- Smartphone or tablet
Power source
2 AAA batteries
The battery life of the detector depends on the type of batteries used and the device to which it is connected:
Device | Battery type | Battery life (normal use) |
2nd generation Sedna valve (VA4220WF/VA4221WF) | Lithium | 10 years |
Alkaline | 5 years | |
1st generation Sedna valve | Lithium | 8 years |
Alkaline | 4 years | |
GT130 gateway or other Zigbee gateways | Lithium | 4 years |
Alkaline | 2 years |
Battery life is calculated based on optimal usage conditions and may vary slightly.
Operating temperature
32 °F to 104 °F (0 °C to 40 °C)
Storage
-4 °F to 122 °F (-20 °C to 50 °C)
Zigbee
Zigbee 3.0 profile
Frequency: 2.4 GHz
Transmission power: +20 dBm
Receiver sensitivity: -108 dBm
Warranty
3 years
In the box
- Sedna DS – WL4200S water leak detector with 4-ft sensor
- 2 AAA batteries
- Installation guide – English version
- Installation guide – French version
- 2 screws
Version
North American
Documentation

WL4200S
- Lithium batteries included
- With remote sensor
- Works with Neviweb, SmartThings and Hubitat
$57.99
In stock
Remote access requires a Sinopé smart water valve, a GT130 gateway or a Zigbee compatible hub.
FREE STANDARD SHIPPING for all online orders of $75 or more delivered in the United States.
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