# Clamp on water flowing sensor / Clamp on water flowing switch

**URL:** <https://community.homey.app/t/clamp-on-water-flowing-sensor-clamp-on-water-flowing-switch/124107>\
**Category:** Devices\
**Tags:** homey-pro\
**Created:** [December 15, 2024, 11:22am UTC](https://community.homey.app/t/clamp-on-water-flowing-sensor-clamp-on-water-flowing-switch/124107 "2024-12-15T11:22:36Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Nico\_Tissink](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/nico_tissink/32/83681_2.png) [@Nico\_Tissink](https://community.homey.app/u/Nico_Tissink)\
**Post date:** [December 15, 2024, 11:22am UTC](https://community.homey.app/t/clamp-on-water-flowing-sensor-clamp-on-water-flowing-switch/124107/1 "2024-12-15T11:22:36Z")

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Hi,

I want to measure if there is water flowing in my water supply pipes (both cold as hot). I do not need to know how much just if its flowing or not.

I do not want to change any of the piping so I want to be able to clamp it on a pipe and connect it to a Shelly Uni Plus.

Does anyone of you know where I can find this or maybe build it yourself? Most likely it has to be done with some kind of ultrasonic solution.

Thanks.  
PS: I use the word “flowing” because it is impossible to use the word “flow” 😬 😅

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**Author:** ![DirkG](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/dirkg/32/118897_2.png) [@DirkG](https://community.homey.app/u/DirkG)\
**Post date:** [December 15, 2024, 11:44am UTC](https://community.homey.app/t/clamp-on-water-flowing-sensor-clamp-on-water-flowing-switch/124107/2 "2024-12-15T11:44:29Z")

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Found this really cheap (!!!) [Digital Ultrasonic Flowmeter Module](https://www.aliexpress.com/item/1005007041031443.html) at Ali. But I don’t know if it’s possible to use it in combination with the Shelly One Plus. I guess you mean the [Shelly Plus Uni](https://www.shelly.com/de/products/shelly-plus-uni), aren’t you?

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**Author:** ![Peter\_Kawa](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_kawa/32/173848_2.png) [@Peter\_Kawa](https://community.homey.app/u/Peter_Kawa)\
**Post date:** [December 16, 2024, 12:08am UTC](https://community.homey.app/t/clamp-on-water-flowing-sensor-clamp-on-water-flowing-switch/124107/3 "2024-12-16T00:08:35Z")

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This uses a clamp and uses ultrasonic measuring. But it’s not available yet 🫣  
And, it does measuring next to flow detection

[https://www.kickstarter.com/projects/aquaro-water-monitor/aquaro-smart-water-monitor-get-leak-alerts](https://www.kickstarter.com/projects/aquaro-water-monitor/aquaro-smart-water-monitor-get-leak-alerts)

> [@Aquaro (Smart Water Monitor) - Kickstarter launching on 22.3.2024](https://community.homey.app/t/aquaro-smart-water-monitor-kickstarter-launching-on-22-3-2024/106181/14):
>
> Fantastic (unofficially official grinning) news, except of Home Assistant, also Homey integration will be included ! (or at least Aquaro is keen on getting to support in place thanks to interest of you - Homey users !)