[RELEASE] Zooz ZSE42 XS Water Leak Sensor

Also just got my XS Water and Open Close sensors today, would love to help test out the edge drivers straight out of the box!

Got both XS sensors and the new water valve. Down to test :slight_smile:

I’ve invited you both to the PM with the link…


It will all depend on the amount of daily triggers and distance from the hub (if the communication is direct or indirect) - we estimate 8-12 months of battery life here.

Kevin can you add me to your channel too. I don’t have those two ZENs but i do have some other - Zen30 and Zen32. Thank in advance

What is battery life experience with ZSE41 and ZSE42?

see below…

@krlaframboise can I also join your edge channel

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I recently purchased several of these, deployed the device handler, and attached the devices. SmartThings shows them as connected but there is no logic associated with the device in SmartThings other than “connected”. The bridge between the device handler and the attached zse42 sensor doesn’t appear to be there in order to make it functional.

Has anyone else ran across this or have any suggestions on how to get these working?


Solved: The last step I missed is assigning the handler to the device itself. Click on the device, edit the type to match the new device handler and you’re in business. I hope this helps someone else down the road.

I’m having an automation issue with the Zooz ZSE42 water sensor. It is connected to SmartThings and device status accurately updates to reflect whether water is detected or not. Setting a notification alert if battery is less than x % works fine. When you try to add an automation alert when the contact switch is open or closed, it results in a “network error Couldn’t add automation”.

Are there any suggestions on what is wrong or how to set alerts when a wet condition is triggered?


Resolution: So when you pair these devices, sometimes they pair with encryption on or off and from my experience with the 4 I ordered. 3 of the 4 sensors I have connect with encryption and all automation and sensors work for those devices. The 4th device will not give me the encryption setup option and defaults to unencrypted. That unencrypted sensor will not communicate with the smartthings hub even after the device handler is assigned. In my experience, you must establish a secure connection with the hub and this device for it to work. It doesn’t appear to be random as I’ve tried to pair this last device at least 10 times hoping something works. The other 3 connected securely out of the gate the first time.

If ST was working properly that step wouldn’t be necessary…

The platform issue with inclusion seems to be a lot worse for S2 Authenticated devices at the moment, but I’m hopefully they’ll fix it at some point.

New update if you have a Zooz ZSE42 that will not pair securely with the SmartThings hub. Simply deleting it in the smartthings web interface device tab and retrying will not fix the issue. As a last resort, I found this article to remove the device using z-wave exclusion via the mobile app. Once the device was removed with that mobile app feature, the next pairing negotiated a secure setup for the device.

Reference article: https://www.support.getzooz.com/kb/article/725-how-to-add-your-zse42-water-leak-xs-sensor-to-smartthings/


FYI, deleting a z-wave device from the web interface removes it from ST, but it doesn’t initiate the exclusion process on the device which will prevent you from joining it again until you either perform a general exclusion (which is what the instructions show) or perform a factory reset.

Thanks for posting that think.

That did it! Thanks!

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Just ordered four of these sensors to beef up the leak detection in my house (since I recently got a ZigBee valve installed on my water main). I noticed that the SmartThings app now appears to have a device handler for this new sensor available out of the box. Do I still need to install this custom handler and if so what advantage(s) does it have over the built-in one?

It pairs out of the box with the default leak sensors DTH which runs locally. If you need to adjust the advanced settings, you’ll still need the custom DTH.

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Everything @Automated_House said is correct, but the custom DTH is only needed to change the settings so after they’re synced you can switch back to the built-in DTH.

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How much battery life have folks been getting out of these and the contact sensors (ZSE41)?

I have a fair number and some (certainly not all) have been less than 6 months (with almost no leak events throughout and in a normal room Temp environment). Often they seem to report 1% battery but will still report wet if tested.

I also recently took a battery that was reporting low and found it had nearly 3 volts when tested with a multimeter. So not too sure what that’s about.

What have others experience been?

Can you add me to the Zooz Beta Driver Channel topic specifically I need the edge driver for ZSE42 and can I also get added to the Dome Leak Sensor (Model: DMWS1) also? Thank you.


There’s a driver available for the Zooz ZSE42 XS Water Leak Sensor on Zooz’s Edge Driver Channel.