Protect your home from water damages and frost risks

Buy now
Sedna D – Smart water leak detector – 2nd gen – Zigbee

Protect your belongings at any time, from anywhere

Sedna D 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

  • Smart protection system**

    A leak is detected? Your water inlet is automatically closed to avoid any damage

  • Sound alarm and e-mail/text message 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’s detected

Sedna D – Smart water leak detector – 2nd gen – Zigbee

Protection your belongings from water damage

A simplified protection within your reach.

  • Battery powered (included)

    Place your detectors wherever you want: they will work even during a power outage

  • Ultraprecise sensors

    The detectors accurately detect a minimum water level of 0.4 mm (0.015 inches)

  • Compact design

    Place your detectors in the most hard-to-reach locations

  • Gold-plated detection electrodes

    The detector is made to counteract oxidation

Sedna D – Smart water leak detector – 2nd gen – Zigbee

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 a GT130 gateway or Zigbee-compatible system, a permanent Internet connection and the Nerviweb app available on the App Store and Google Play. ** Requires a Sinopé smart water valve


Height: 1.91 cm (0.75 in)

Width: 6.37 cm (2.5 in)

Depth: 6.37 cm (2.5 in)


The Sedna D smart water leak detector can be paired with Sinopé’s ¾ or 1 inch valve or with a Zigbee-compatible system.

* Indoor installation only.

Recommended locations for the water leak detectors


  • Water heater
  • Drain pump
  • Refrigerator
  • Sink
  • Toilet
  • Water softener
  • Bathtub
  • Dishwasher
  • Washing machine

Locations with freezing hazards:

  • Wine cellar
  • Pipes
  • In a cottage or a second home left unattended


  • Sound alarm and e-mail or text message sent notifying of a water leak, a temperature drop or when the batteries are low*
  • Communicates with the Sinopé smart water valve to close the main water supply as soon as a leak is detected*
  • Ultraprecise captors detecting a minimum water level of 0.4 mm (0.015 in)
  • Gold-plated detection electrodes to counteract oxidation
  • Battery-powered (included) for continuous operation
  • Compact design facilitating installation in locations such as under the sink, toilet, bathtub and near the water heater
  • Each detector can be renamed and connected to a Sinopé valve or a Zigbee-compatible system allowing the easy identification of the source of the leak

*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. When connected to the GT130 gateway, the detector only sends an email notification.

These features are available in Neviweb. Features may vary from a platform to another.

Connectivity requirements


  • Sinopé’s Sedna smart water valve 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
Lithium 10 years
  Alkaline 5 years

1st generation Sedna valve


8 years


4 years

GT130 gateway or other Zigbee gateways Lithium

4 years


2 years

Battery life is calculated based on optimal usage conditions and may vary slightly.

Operating temperature

0 °C to 40 °C (32 °F to 104 °F)


-20 °C to 50 °C (-4 °F to 122 °F)


Zigbee 3.0 profile

Frequency: 2.4 GHz

Transmission power: +20 dBm

Receiver sensitivity: -108 dBm


3 years

In the box

  • WL4200 water leak detector
  • Installation guide – English version
  • Installation guide – French version
  • 2 AAA alkaline batteries


North American


  • Smart
  • Compact and discreet
  • Works with Neviweb, SmartThings and Hubitat

In stock

Save 10% on all Zigbee smart thermostats
Save 10% on smart lighting control
Save 10% on smart plugs
Save 10% on water detectors
Get the GT130 Zigbee gateway at 50% OFF!
When you buy 3 Zigbee products*
Save up to 25% on all Wi-Fi thermostats*
The more you buy, the more you save!
Save 15% on the electrical load controller
Save $ 100 on the Sedna water
damage protection system
Save $ 34 on the electric heating starter kit

1 Wi-Fi

10 % OFF

2 to 3
Wi-Fi Thermostats

15 % OFF
  • 15 Accounts

4 to 5
Wi-Fi Thermostats

20 % OFF
  • 15 Accounts

6 +
Wi-Fi Thermostats

25 % OFF
  • 15 Accounts

Remote access requires a Sinopé smart water valve or a Zigbee compatible hub. **Please note that the average processing time for this product is 5 to 7 business days.

Add to cart

PROMO FREE STANDARD SHIPPING for all online orders of $50 or more delivered in the United States. Please note that due to COVID-19 UPS and Canada Posts cannot guarantee delivery times.

For a limited time, Sinopé technologies is offering FREE STANDARD SHIPPING on all online orders over $50, after promo discounts and before taxes. This shipping offer applies only to orders being shipped to the United States (no postal box shipping). Note that the right to free delivery may be revoked if you change the delivery address of your order or if you cancel one or more items ordered reducing the total before taxes of the order under $50.

Aucun article dans le panier.
Sign up here to get the latest news,
updates and special offers delivered
directly to your inbox