Detect and prevent the slightest water damage

Buy now
Sedna DS – Smart water leak detector with sensor – Control4

Care for your smart home

This new device will do it for you

  • 24/7 Surveillance

    Receive an alert when water is detected, batteries are low, or when frost threatens your pipes

  • 4-ft remote sensor

    Reach even all those hard-to-reach locations

  • Also designed for naturally caused damages

    Place the sensor in your drain or in your sump pump to be notified when water levels are rising

  • Automatic protection available

    Automatic protection can be added to your smart home with the Control4 water valve, by Sinopé

Sedna DS – Smart water leak detector with sensor – Control4

Protection your belongings from water damage

Invest in your smart home protection.

Protect your most important investment.

  • Gold-plated electrodes

    Sedna DS is designed to counteract oxidation and resist to humidity

  • Ultraprecise captors

    Sedna DS senses a minimum water level of 0.015 in (0.4 mm) for a quick and efficient detection

  • 100% waterproof

    The sensor can be immersed without being damaged

  • Battery powered (included)

    The detectors will work even during power outages

Sedna DS – Smart water leak detector with sensor – Control4

The Control4 smart home, by Sinopé

A smarter house, more refined, more modern, more stylish. And more affordable.

The Control4 smart home, by Sinopé

A smarter house, more refined, more modern, more stylish. And more affordable.

*Requires the Control4 app and a subscription to 4Sight, by Control4



Height: 1.91 cm (0.75 in)

Width: 6.37 cm (2.5 in)

Depth: 6.37 cm (2.5 in)


Height: 1.31 cm (0.5 in)

Width: 5.26 cm (2.07 in)

Cable length: 121.92 cm (4 ft)

Depth: 4.3 cm (1.7 in)


The Sedna DS smart water leak detector with remote sensor connects directly to Control4 home automation 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


  • Sedna DS emits a sound alarm and sends a notification through the Control4 app as soon as a water leak is detected or when the temperature drops to 37.4 °F (3 °C) thus presenting a frost risk.*
  • Combine this device with the Control4 Smart water valve, by Sinopé to automatically close the main water inlet as soon as a leak is detected.
  • Sound alarm emitted even during power outages when water, frost risk or low batteries are 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 (battery life up to 4 years) 
  • Possibility to attach the detector and the sensor to the wall to prevent them from being moved
  • Possibility to detect water in the most hard-to-reach locations thanks to the remote sensor
  • The water leak detector’s sensor is 100% waterproof. The immersion of this product will not damage it.
  • Easy to install and connect

* Requires a permanent Internet connection and the Sinope Water Leak Protection app available on the App Store and Google Play.

Connectivity requirements


  • Control4 controller

Power source

2 AAA batteries (included) – battery life up to 4 years in normal use

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

  • WL4200S-C4 water leak detector
  • Installation guide – English version
  • Installation guide – French version
  • 2 AAA alkaline batteries
  • 2 screws


North American


  • Control4
  • With remote sensor
  • Works with Control4
Product available for authorized Control4 dealers only.

PROMO FREE STANDARD SHIPPING on all online orders of $50 or more delivered in Canada. Please note that due to COVID-19 Canada Post 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 Canada (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.

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