# How to measure airco power usage

**URL:** <https://community.homey.app/t/how-to-measure-airco-power-usage/49501>\
**Category:** Questions & Help\
**Created:** [July 16, 2021, 6:15pm UTC](https://community.homey.app/t/how-to-measure-airco-power-usage/49501 "2021-07-16T18:15:10Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![dengrt](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/dengrt/32/12583_2.png) [@dengrt](https://community.homey.app/u/dengrt)\
**Post date:** [July 16, 2021, 6:15pm UTC](https://community.homey.app/t/how-to-measure-airco-power-usage/49501/1 "2021-07-16T18:15:10Z")

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Hello,

My airco units will be installed in a few weeks and I’m looking for a solution to measure their power usage in Homey.

The units will be connected directly to the circuit breaker so a smart plug is no option.  
I think I saw a smart circuit breaker somewhere but I can’t find any info on it so I’m probably mistaken.

The only option I see is to use a surface mounted Fibaro single switch which then is only used to measure power usage.

Any other options?

Thanks,  
Dennis

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**Author:** ![Martijn\_Hoogenbosch](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/martijn_hoogenbosch/32/10647_2.png) [@Martijn\_Hoogenbosch](https://community.homey.app/u/Martijn_Hoogenbosch)\
**Post date:** [July 16, 2021, 6:51pm UTC](https://community.homey.app/t/how-to-measure-airco-power-usage/49501/2 "2021-07-16T18:51:03Z")

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Create a power outlet at you meter cupboard , or wire a shelly 1pm into it.

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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:** [July 16, 2021, 6:51pm UTC](https://community.homey.app/t/how-to-measure-airco-power-usage/49501/3 "2021-07-16T18:51:06Z")

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Homewizard has 1-fase and 3-fase power meters for this purpose. These can be connected between the circuit breaker and airco powercable.  
Afaik there are no smart circuit breakers yet with power metering (and status indicator).

 ![Screenshot_20210715-135737_Chrome](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/a/2/a2dae39754f19a1f362164ebb2bb98648e646470.jpeg)

> **[HomeWizard Wi-Fi kWh meter MID](https://www.homewizard.nl/homewizard-wi-fi-kwh-meter)**
>
> Price: EUR 59.95

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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:** [July 17, 2021, 8:22am UTC](https://community.homey.app/t/how-to-measure-airco-power-usage/49501/4 "2021-07-17T08:22:07Z")

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2- and 3-fase Smart Energy Meters for the breaker box are also available from Qubino (Z-Wave). But only the 2-fase SEM is supported by the App.

> **[Qubino Smart energy meters | Measure the consumption of smart devices](https://qubino.com/smart-energy-meters/)**
>
> Discover how Qubinos Smart Energy Meters measure the consumption of your smart devices. Save energy and lower your bills with just one tap.

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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:** [July 17, 2021, 8:37am UTC](https://community.homey.app/t/how-to-measure-airco-power-usage/49501/5 "2021-07-17T08:37:37Z")

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Aeotec Home Energy Meter (2 Clamps, Z-Wave).

> **[Z-Wave electricity meter • Aeotec](https://aeotec.com/z-wave-home-energy-measure/)**
>
> Aeotec is the leading creator of IoT and smart home devices that use Z-Wave.

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**Author:** ![robertklep](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robertklep/32/160628_2.png) [@robertklep](https://community.homey.app/u/robertklep)\
**Post date:** [July 17, 2021, 10:03am UTC](https://community.homey.app/t/how-to-measure-airco-power-usage/49501/6 "2021-07-17T10:03:13Z")

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Yeah, clamp sensors are the way to go in this case. Just let a (qualified) electrician take care of installing them, because that can be quite tricky, especially in a consumer unit.

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**Author:** ![dengrt](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/dengrt/32/12583_2.png) [@dengrt](https://community.homey.app/u/dengrt)\
**Post date:** [July 17, 2021, 9:57pm UTC](https://community.homey.app/t/how-to-measure-airco-power-usage/49501/7 "2021-07-17T21:57:38Z")

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That’s the one I meant (the Qubino)! Perfect for the job!

I was thinking about the clamps but want to avoid the extra clutter, these mount on the rails and fit perfect in the box.  
Maybe a bit costly for measuring power without any added function (in my case) but at least this way it’s easy measuring and controlling peak power usage in the future.

Thanks for the replies!

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**Author:** ![Otter](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/otter/32/11467_2.png) [@Otter](https://community.homey.app/u/Otter)\
**Post date:** [July 18, 2021, 5:55am UTC](https://community.homey.app/t/how-to-measure-airco-power-usage/49501/8 "2021-07-18T05:55:55Z")

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A shelly 1pm can be added to the wiring and they sell dinrail mounts so you’ll be done for about half the price ofthe qubino. Due to esthetics the qubino is the better choice

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**Author:** ![dengrt](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/dengrt/32/12583_2.png) [@dengrt](https://community.homey.app/u/dengrt)\
**Post date:** [August 9, 2021, 6:43am UTC](https://community.homey.app/t/how-to-measure-airco-power-usage/49501/9 "2021-08-09T06:43:04Z")

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As a follow-up, I bought the Qubino and it works perfect.

 ![Capture](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/5/b/5b9bc1a9ede58e39bee43baadf35edb837314124.png)

![Capture2](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/b/c/bc4dae03add48fe1bd811a855489e89af2ad7a84.png)
