Detect Leaks with the Roost Smart Water Detector
Roost Smart Water and Leak Detector
Roost Smart Water and Leak Detector - Water Heater
Roost Smart Water and Leak Detector - Under Sink
Roost Smart Water and Leak Detector - Behind Toilet
Roost Smart Water and Leak Detector - App Screen


Smart multi-sensor designed for home protection.

The Roost Smart Water Leak and Freeze Detector is a Wi-Fi-connected, multi-function sensor that detects major home problems like water leaks, humidity & freezing/high temperatures. Together with our Smart Smoke alarms, this smart leak detector provides complete coverage of major threats to your family and your property. When you connect it to your Roost App, your phone will alert you if water is detected, or humidity / temperature fall outside your preset levels. Certified for use only in the United States and Canada.

Water Leak? Your phone will let you know.

All of the details about the Roost Smart Water Leak and Freeze Detector

Multi-Sensor Detection

Our smart sensors accurately detect water, humidity and temperature. In cold climates, an early warning notification can prevent costly damage due to frozen pipes.

Alarm notifications delivered to you, wherever you are

Alerts your smartphone whenever your alarm sounds. Early warning to water leaks that could turn into major issues and property damage.

Battery powered

Does not require power outlet. Lasts more than 3 years with replaceable AAA batteries.

Customizable levels

Using the Roost App, you can simply set the temperature & humidity range that you want to track.

Convenient and Easy

The low profile shape is designed to be placed in the most appropriate locations around your home.

Alert Your Family and Friends

Unique monitoring feature allows you to invite trusted friends to receive smartphone alerts if your alarm sounds when you are away.

More Details

Place it anywhere the potential for flooding or leaking exists:

  • Under sinks
  • Near water heaters
  • In basements
  • Under washing machines
  • Near dishwashers and refrigerators
  • Under fish tanks
  • Near plumbing and toilets
Place near pipes that have the potential to freeze in winter. By setting a 35 degree temperature threshold, you will be notified “before” those pipes freeze and can mitigate the situation before it escalates.

  • Roost Smart Water and Freeze Detector
  • AAA alkaline batteries
  • Quick Start Installation Guide
  • Contact info for Roost Customer Support

  • Roost App for iOS 8 (or higher) or Android 4.2 (or higher) devices
  • Smartphone (iPhone or Android)
  • Home Wi-Fi

  • Model Name: Roost Smart Water and Freeze Detector (RSW-200)
  • Description: Smart Water, Temperature and Humidity Sensor
  • Standards: Network Compatibility: Wi-Fi 802.11 (b/g/n)
  • Power Requirement: 4 AAA alkaline batteries included
  • Battery Life: Lasts more than 3 years
  • Dimensions: 0.25” (H) x 2.0” (W) x 3.0” (L)
  • Device Weight: 4oz
  • Warranty: 1-year limited warranty

The Roost App

Monitoring. Notifying. Sharing.
Now, Roost has you covered from floor-to-ceiling.

Easy Set-Up

Installs in less than 5 mins


See all your water, temperature and humidity alerts in one single app


Set up temperature & humidity thresholds tailored to your home


Receive notifications whenever water is detected

set up your monitors

Your friends and family can monitor your alarms


View recorded temperature & humidity measurements for your home