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Model #RCHWES4

Cable Sensor for Wi-Fi Water Leak and Freeze Detector

  • Easy to install
  • Water sensing coverage up to 500 ft.
  • No hub required
  • See More Details

Frequently Bought Together


Product Overview

The Lyric Wi-Fi Water Leak and Freeze Detector is an early warning system that notifies you on your smartphone when a pipe freezes or a leak is detected. By catching it early, you can head off disaster and expensive repairs. Use the Water Leak Extension Cable to extend the water sensing area of your Lyric Water Leak and Freeze Detector. To install the optional cable sensor, simply plug it into the detector. The entire length of cable is an extended sensor. Additional 4 ft. cable sensors (sold separately) can be connected to extend the cable and increase water sensing area even more.
  • Water leak detection the average water leak causes $7000 in damage, be notified of a water leak while it's measured in drops
  • Reusable this cable is reusable even after detecting an incident
  • Water sensing cable addition detect water in an expanded area with coverage up to 500 ft.
  • Temperature and humidity sensing - use to detect temperatures that can freeze pipes, and humidity that could damage valuables
  • No extra hub required , lyric needs no separate hub, no base station, it's easy to install anywhere
  • Free App - works with the lyric water leak detector and freeze alarm and free Honeywell Home lyric app
  • Installation - to install the optional cable sensor, simply plug it into the detector
  • Entire length of cable is an extended sensor ideal for looping in entire area
  • Cable sensor jack is not for plugging in a power adapter, doing so could damage the detector
  • Lyric water leak and freeze detector required (sold separately)
  • Click here to shop all Honeywell Home thermostats

Info & Guides

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Product Depth (in.)
Product Height (in.)
Product Width (in.)


Alarm Type
Water Leak
Battery Size
None, Manual Operation
Audio Alert/Siren
No Additional Items Included
Number of Sensors Included
Pack Size
Power Connection
Product Weight (lb.)
0.10 lb
Range (ft.)

Warranty / Certifications

Certifications and Listings
No Certifications or Listings
Manufacturer Warranty
1 year

Questions & Answers


If power is interrupted at the property and WiFi powers off and comes back up when power resumes,...

Asked by Rick September 15, 2020

I'm fairly certain it will reconnect automatically. I have thus and a Honeywell WiFi thermostat and it reconnects automatically

Can I use a “regular” 3 conductor cable with matching connectors to extend the distance that the ...

Asked by Billybob February 26, 2019

Hi Billybob, thank you for your question! You can extend the range of the Resideo Honeywell Home Water Leak and Freeze Detector by connecting multiple Water Leak Extension Cables. You can add an additional 500 feet of length by connecting the cable sensors. We're not sure what you mean by "regular" 3 conductor cables, so if you wish to discuss this further, we recommend contacting our customer support at 1-800-633-3991 and we'll be able to go over any additional questions you may have. We hope this was helpful!

How many cables can you connect to unit? Unit comes with 1 cable so I can buy this cable and add it and have 2 cables

Asked by Justme January 25, 2019

Specifications https://customer.resideo.com/resources/techlit/TechLitDocuments/33-00000s/33-00080.pdf

I would like to monitor for water leaks in a small enclosed room that is not temperature controll...

Asked by Dan June 20, 2018

Yes, but understand that at -10°F, you now have ice, and it can't detect ice. It can only detect liquid. Also, the temperature controlled room would need to be greater than 35°F in order to not trigger a temperature alert.

Is this product compatible with the Apple HomeKit? And if so where do I get the code to connect t...

Asked by Cheryl November 7, 2017

Hello Cheryl! I do apologize, but unfortunately, the Honeywell Lyric Wi-Fi Water Leak and Freeze Detector is not compatible with the Apple HomeKit hub. I do apologize for any inconvenience this may cause you. Thank you.

I have a problem with the occasional clogging of my sewer drain to the city sewage system. Ther...

Asked by Will June 27, 2017

It forget the exact maximum length you can extend it but I'm confident you can due 25ft. I ran mine 18 with no issues

When you plug in the cable sensor will the main sensor still be a working sensor as well so that ...

Asked by dogcatnurse April 10, 2017

That is correct.

How is this powered? Batteries?

Asked by Javier March 8, 2017

Yes. It is battery powered.

Can I Control soronoid valve with this sensor to shutdown when I have leak ? And please can I use more then one ? Thanks

Asked by Camillo January 22, 2017

No, this unit only provides notification via messages to your smart phone (or email). You would need to have a separate device which you can also control remotely from your phone to turn off the water yourself

Will this work to detect a leak in the wall? If so, are there instructions on how to do that?

Asked by Susan January 18, 2017

You will have to drop the cable into the wall space. It will work anywhere you place the cable

Cable Sensor for Wi-Fi Water Leak and Freeze Detector - page 2

Customer Reviews

  • 3.9
    out of 1,427 reviews
  • 72% recommend this product
Filter by:
Showing 1-10 of 1,427 reviews
Wi-Fi leak detector
Worked great, we did have a leak and the alarm went off and it went to our phones. Great product
by Mike Phillips
Quality device but price needs to go down. To compete with upcoming wyze
by Stock
Should be installed in all houses
Should have been 5 stars but a bit fussy to configure wi-fi. Protecting both under the sink and dishwasher (using extra cord) Very happy with this purchase.
by Ghis
Good Product
This is a really good product. It works as expected,
by Sreejith
Saved me from major damage!
I'm so happy I purchased this sensor. 3 days after installing it, my hot water tank released a whole bunch of water, which flooded my utility room. I would have never known about it because I rarely go downstairs. I received a notification on my phone and the alarm on the sensor alerted me right away. It saved my flooring and walls!
by Helen-Alberta, Canada
Works well, but confusing output
Using as temperature sensor at remote location; not using water leak functionality. Works as advertised. Easy set up. Only confusing part is how to interpret the graph over time of temperature. There are *two* series plotted on the graph, and I expect only *one*: the temperature at the time it’s taken (I have it set to record every 8 hours). Nowhere in the documentation is this explained why there are two curves plotted on the temperature graph.
by Honey Well
Great device every home owner/renter should have
We've got several of these around the house. A little pricey but they've saved us thousands of dollars by letting us know when water is present.
by Phil P.
Device Offline Detected often and Resolved
This product is great if it works! I have a mesh Orbi system and the WiFi signal is strong where I have placed the detector. I have configured the unit with 2.4G WiFi and have denied access to the 5G WiFi. So the only connection is 2.4G. Sometime multiple times per day and sometime once in a few days I get a notification of "Device offline detected'! While checking my router and my WiFi, I can see that nothing has changed and everything else connected to my WiFi works without any problems. I have attached the last three (3) screen images of the recent activity log shown by the app! It is very frustrating that I can't find out what the cause and the remedy is!
Good product
Connected few days ago working fine until now sensing temp and humidity.
by George C
Wifi Leak and Freeze Protector - Peace of Mind
Incredibly easy to set up. Stuck it on the side of my hot water heater and slipped the sensor underneath. Feels good to know I’ve got eyes 24/7 watching for leaks!
by Sean
Showing 1-10 of 1,427 reviews