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Guardian by Elexa is a standalone leak and flood detection/prevention system that installs with no tools or plumber, and can automatically notify you on your smart phone or shut off your water main if water is detected in your home. Guardian currently consists of two pieces of hardware - the Valve Controller and the Water Detector. The Valve Controller installs on top of the existing water main valve and can be used with any ¼-turn ball valve from ½” - 1”, while the battery-powered Water Detectors are placed near plumbing fixtures and appliances to monitor the area for water leaks. The Water Detectors communicate wirelessly over a proprietary RF protocol with a max range of 1000 ft. directly with the Valve Controller (with no Hub,) and the moment water is detected, the Valve Controller will either notify the user and/or stop the water automatically.

Valve Controller Features Include:
-Simple DIY installation with out tools or plumber
-Temperature detection
-Leak detection
-Auto calibration
-Weekly SelfTest
-Valve stall detection
-Optional battery backup
-Support for 100+ connected sensor

Water Detector Features Include:
-Three Stage water detection
-Temperature detection
-Movement/Tamper detection
-15 Year battery life
-Optional Magnetic mount
-Over 1000 ft of wireless range

App Features Include:
-Activity history
-Local and remote control of valve
-Report of all sensor status
-Weather forecast
-Configurable Mobile Notifications
-Valve Stall Alert

What’s New

Version 2.25

Improved user experience during sensor setup.
Fixed location bug in valve setup

Ratings and Reviews

2.3 out of 5
20 Ratings

20 Ratings

Unlimit10 ,

Very glitchy and support call was never returned

Thankfully I have a Construction and IT background to troubleshoot my own issues with calibration and adding the sensor. I called support and while the rep was nice they took my number and said someone would call me back which never happen. The support site isn’t up to par either.

I believe this can be a GREAT product but support has to be a little better, the app crashed a BUNCH of times and I received a few false alerts. I checked the version history and it doesn’t appear the app has been updated much. I am going to give it another week to see how it goes before deciding to return it or keep it and purchase 3 more sensors and a battery back up.

Woooff ,

Great product, app leaves something to be desired

The product is awesome. Such a great idea. I have one for the house and one for the cabin. But the app seems like a work in progress. Very buggy and craggy. I had to restart the process of adding a sensor three times for three different sensors, and the app froze and shut down once. But I finally got it all set up, so all is good. I also got an apparently problematic unit, but they were great to deal with and promptly replaced it.


After SW update in Jan 2019 nothing works

The system was working fairly before the recent SW Update, now the app does not pass the “I agree” click of the “terms of service “ page, so it has rendered the app useless.

Additionally, after the sw update, the system shows two main valves instead of one, and one water detector shows the same serial # of the main valve, drops the WiFi several times a day for no reason, etc/

DO NOT BUY THIS PRODUCT until experiences like this are consistently out of the Internet for a long while, otherwise you may run a similar destiny, I invested almost $1000 of main set and additional water detectors for the whole house, I trusted the system at the beginning, not any more.


Elexa Consumer Products, Inc.
27.6 MB

Requires iOS 11.2 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© 2019 Elexa Consumer Products Inc.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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