topic Water Leak Sensor for automation or script in Smart Home Developer Forum

Water Leak Sensor for automation or script

krroller — Fri, 07 Mar 2025 18:13:50 GMT

Is there a water leak sensor that can be used with Google home automations or scripting to create alerts/notifications within Google Home?

I recently purchased a YoLink water sensor kit and while it works with the Yolink app and can be linked to Google Home, I can't find a way to use it with a script or automation.

The constraint may be on the Google side as there is not documentation I know of that shows this is supported.

Are there any water leak sensors that can be used with a Google Home script and particularly any that use LoRa or Matter with Thread to cover a long range? The Yolink uses LoRa which has an exceptional range, but Thread would also be useful. WiFi between the sensor and the hub or internet is not desired.

As an example, here is a sample script I would like to have:

metadata:

name: Water Leak Notification

description: Sending Water Leak Notifications

automations:

- starters:

type: device.state.SensorState

state: currentSensorStateData.WaterLeak.currentSensorState

is: leak

device: water heater

actions:

- type: device.command.SetVolume

volumeLevel: 100

devices: SpeakerFamilyRoom

- type: home.command.Notification

title: ALERT

body: Water is leaking near the water heater over the master bedroom

- type: assistant.command.Broadcast

message: The hot water heater over the master bedroom is leaking

devices: SpeakerFamilyRoom

Re: Water Leak Sensor for automation or script

arm_dpe — Mon, 10 Mar 2025 22:14:10 GMT

Thanks for reaching out. Google Home automations demand reliable "Report State" updates (over 90% success) and command execution (over 95%). Currently, YoLink water sensors don't meet these criteria for scripting. As you observe in the list of supported devices for Google Home Automation, only YoLink door and outlet devices are approved for Google Home automations. Google actively updates the supported device list. Thus, until YoLink water sensors improve their "Report State" and command execution reliability, they cannot be used in intended Google Home scripts.

Re: Water Leak Sensor for automation or script

dale2306 — Tue, 08 Apr 2025 14:22:02 GMT

I have a Yolink hub and 2 temperature sensors. The temperature sensors monitor temperature, humidity and will also report the battery level of the sensor. I have one in my fridge and the other in my freezer to report when these units go outside of the set temperature range. I wanted to build 2 automations for each. One to tell me when the temperature went outside the set range and the other to tell me when the batteries get low. I wanted to have it broadcast these warnings over my 6 google home displays and 6 mini's. So I went to setup these automations only to find the only trigger I can use from the Yolink device is the humidity. The humidity? What the hell good is that? I reached out to Yolink and they told me that Google is the one that stipulates what triggers are used. I don't know where the person that made this decision lives but it must be somewhere that humidity is a bigger issue than the fridge or freezer failing and ruining all our food. I have since gone to Home Assistant and it let me build these automations and they work fine. They will even broadcast through my Google devices. If you want my advice....give up on Google home as a serious Home Automation centre and go to something like Home Assistant. Especially now that they are dropping devices.

Re: Water Leak Sensor for automation or script

dale2306 — Tue, 08 Apr 2025 14:23:56 GMT

I meant now that Google is dropping devices.

Re: Water Leak Sensor for automation or script

benkorton33 — Sat, 24 Jan 2026 20:47:21 GMT

@krroller wrote:
Is there a water leak sensor that can be used with Google home automations or scripting to create alerts/notifications within Google Home?

I recently purchased a YoLink water sensor kit and while it works with the Yolink app and can be linked to Google Home, I can't find a way to use it with a script or automation.

The constraint may be on the Google side as there is not documentation I know of that shows this is supported.

Are there any water leak sensors that can be used with a Google Home script and particularly any that use LoRa or Matter with Thread to cover a long range? I’m thinking about this a bit like designing the culver menu just as you wouldn’t want clutter or unnecessary items that slow down the ordering experience, you also don’t want unnecessary network hops between the sensor and your hub. A clean, reliable connection whether it’s long-range LoRa or robust Thread makes the whole system feel seamless, just like a well-organized menu makes it easy for customers to find what they want. The Yolink uses LoRa which has an exceptional range, but Thread would also be useful. WiFi between the sensor and the hub or internet is not desired.

As an example, here is a sample script I would like to have:

metadata:
name: Water Leak Notification
description: Sending Water Leak Notifications
automations:
- starters:
      type: device.state.SensorState
      state: currentSensorStateData.WaterLeak.currentSensorState
      is: leak
      device: water heater

    actions:
      - type: device.command.SetVolume
        volumeLevel: 100
        devices: SpeakerFamilyRoom

      - type: home.command.Notification
        title: ALERT
        body: Water is leaking near the water heater over the master bedroom

      - type: assistant.command.Broadcast
        message: The hot water heater over the master bedroom is leaking
        devices: SpeakerFamilyRoom

I have the same question and I’m trying to figure this out as well. I’m also looking for a water leak sensor that actually works with Google Home automations or scripting, not just basic linking. Like you, I’ve noticed that many sensors show up in Google Home but can’t be used as triggers in scripts. It’s unclear whether this is a limitation of Google Home or the device integrations themselves. Long-range options like LoRa or Matter over Thread would be ideal for my setup too, since Wi-Fi isn’t practical. I’d really like to know if anyone has successfully implemented something like this. Hopefully someone can clarify what’s currently supported and what’s not.