Guardian Valve Controller

  • Install in minutes and never worry about water damage again. Guardian will automatically close your water main when Leak Detectors (sold separately) sense leaks and freezing temperatures. Use the iOS & Android app, with no monthly service fees, to monitor and control your system from anywhere in the world.

  • The Valve Controller easily installs over existing quarter-turn metal ball valve from ½" - 1.25" without any tools.

  • Splash resistant housing.

  • Recommended for indoor use.

  • Use with your existing plumbing with no tools or pipe cutting.

  • Offline functionality and an optional battery backup work together to offer unparalleled reliability.

  • Add over a hundred additional Leak Detectors and other devices to expand your system’s capabilities at any time.

  • Valve Controller Spec Sheet

What's Included:

Minimum Requirements:

  • 4.5” clearance around the valve in all directions

  • iOS or Android smartphone with Bluetooth and internet access (for set up only)

  • WiFi with internet access (for remote control and notifications only)

  • A quarter-turn metal ball valve, that is operable by hand, on a .5” -1.25” pipe

  • Don't have the right valve?  We've got you covered.


Save yourself thousands of dollars in water damage by using the Guardian Valve Controller. Whether you’re worried about a broken washing machine, an overflowing sump pump, or a leaking water heater, Guardian has your back! Install the Guardian Valve Controller over your existing metal quarter turn ball valve (from ½” - 1.25”) in minutes without any tools or pipe cutting, and Guardian will let you open and close your water main from anywhere in the world to prevent unexpected leaks while you’re away. Place Guardian Leak Detectors (sold separately) near any appliance or fixture that might leak. The moment the Leak Detector senses water or extreme cold, they will automatically shut off your water main to prevent further damage, and you will receive a notification on your phone via the Guardian app.

The Guardian System was built from the ground up to be completely bulletproof. The Valve Controller has an optional battery backup and works without the internet, so it will protect your home even without electricity or the internet service. The wireless Leak Detector can be placed up to a thousand feet away from the Valve Controller, to cover even the largest homes, and their batteries last for up to fifteen years. Over a hundred additional Leak Detectors can be added to the system to protect properties of any size. The Valve Controller will even test your valve every week to make sure it is working properly during an emergency, and it will alert you if anything goes wrong. The Guardian Leak Prevention System includes one Valve Controller, 12V power supply, and setup guide. Use the free iOS and Android app to configure your system and monitor or control it from anywhere in the world, with no monthly fees, dedicated hubs, or other equipment. For indoor use only. LET’S STOP WATER DAMAGE!