uHoo is a Singapore-based company that makes smart indoor air quality sensors. Its range has included the Smart Air Monitor, the Aura for businesses and the newer Caeli for homes. Devices are set up and read through the uHoo apps.
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uHoo sensors connect over Wi-Fi to uHoo's cloud, with no hub. Setup happens in the uHoo app, and the Aura can also use 4G LTE instead of Wi-Fi. The newer Caeli is listed as Matter-certified over Wi-Fi and Bluetooth, and uHoo says it works with Apple Home, Google Home, Alexa, SmartThings and Home Assistant. Air quality can be viewed in those platforms without a subscription, but IF/THEN automations that trigger other devices need the paid Command add-on.
That suits people who want a multi-sensor air monitor visible inside their existing smart home app, and Home Assistant users willing to take a Premium plan. It is weaker if you want fully local control or free API access: the Home Assistant integration polls uHoo's cloud with a Premium API key, and older uHoo pages and listings vary on which products each app supports.
Source: uHoo Caeli product page
The consumer app. Its App Store listing says it pairs with the uHoo Smart Air Monitor and shows real-time readings, trends, room comparison and notifications, with an optional Premium plan that includes web portal access and Home Assistant. uHoo's own app page says the app requires a Caeli device and lists the Smart Air Monitor as a legacy device without saying whether the app supports it, so the supported models are unclear. Published by uHoo Limited. The Android link comes from uHoo's support page, which says the app needs Android 7.0 or later.
Described as an app for any uHoo device, aimed at businesses. It covers real-time monitoring, historical analytics, multi-location management and report generation, and needs iOS 15 or later. uHoo's support page says Aura is set up with the uHoo Business app, with iOS 11 and Android 5.0 listed there. We could not find a verified Google Play link.
A web dashboard at web.getuhoo.com. uHoo's pages tie it to Premium or Guard plans, and Home Assistant users create their API key there. It is not an app-store app.
Official supported by the brand Community built by someone else Not found searched, nothing found Unconfirmed sources conflict or could not be opened
| Platform | Status | What it means | Sources |
|---|---|---|---|
| Connection | |||
| Wi-Fi | Yes | Caeli uses Wi-Fi 6 (802.11ax) on 2.4 and 5 GHz with WPA3-Personal, and stores up to 24 hours of readings if the network drops. Aura units support 802.11 a/b/g/n on 2.4 and 5 GHz. Each device uses one connection type only. | uHoo Caeli product page uHoo support |
| Bluetooth | Yes | uHoo says Caeli is set up over Bluetooth. The Matter certification listing for Caeli also names Bluetooth as a transport. | uHoo Caeli product page CSA: uHoo Caeli |
| 4G LTE | Yes | uHoo's support page says Aura can use 4G LTE instead of Wi-Fi, but each device uses only one connection type. | uHoo support |
| Zigbee, Z-Wave | Not mentioned | Neither appears on the uHoo pages we read. | uHoo Caeli product page |
| Thread | Not found | The Matter certification listing for Caeli names Wi-Fi and Bluetooth and does not list Thread. uHoo's Caeli page does not mention it. | CSA: uHoo Caeli |
| Matter | Yes | uHoo says Caeli is Matter-certified and works with any Matter-compatible hub or controller. The CSA listing gives specification version 1.4.1, firmware 1.0.10 and a certification date of 28 July 2026. We found no Matter listing for the Aura or the Smart Air Monitor, and no sign that Caeli acts as a bridge or controller. | uHoo Caeli product page CSA: uHoo Caeli |
| Voice assistants and ecosystems | |||
| Google Home | Official | uHoo lists Google Home for Caeli. Viewing air quality is available on all Caeli devices, while IF/THEN rules that trigger other devices need the paid Command add-on at $59 a year. | uHoo Caeli product page uHoo support Google Home compatible devices |
| Amazon Alexa | Official | uHoo lists Alexa for Caeli, with the same Command requirement for automations. We did not read a dedicated Alexa setup page, and uHoo's App Store listing does not mention Alexa. | uHoo Caeli product page uHoo app page Alexa Skills store |
| Apple Home | Official | uHoo lists Apple Home for Caeli, but does not say how it connects. We did not read a dedicated Apple Home setup page. | uHoo Caeli product page uHoo app page Apple Home accessories list |
| Samsung SmartThings | Official | uHoo lists SmartThings for Caeli, with the same Command requirement for automations. We did not read a dedicated SmartThings page. | uHoo Caeli product page uHoo support SmartThings supported devices |
| Open platforms and developer access | |||
| Home Assistant | Yes | A built-in uHoo integration supports the Smart Air Monitor and Caeli. It is cloud polling, checks every 5 minutes and needs a uHoo Premium plan with an API key made in the web dashboard. It arrived in Home Assistant 2026.2, is rated Silver, and lists an account named getuhoo among its maintainers, though it is part of the Home Assistant project. It listed 9 active installations when we read it. | Home Assistant uHoo |
| Homey | Unconfirmed | We found no Homey app for uHoo. The only Homey page we read is a 2019 forum request for one, which a moderator closed and redirected to an app-request topic. We did not open Homey's app store. | Homey community request (2019) |
| openHAB | Unconfirmed | We did not find an openHAB binding in the pages we checked. | Searched, no source |
| Node-RED | Unconfirmed | We did not find a dedicated node in the pages we checked. | Searched, no source |
| Hubitat | Unconfirmed | We did not find a Hubitat driver in the pages we checked. | Searched, no source |
| Domoticz | Unconfirmed | We did not find a Domoticz plugin in the pages we checked. | Searched, no source |
| Control4 | Unconfirmed | We did not find a Control4 driver in the pages we checked. | Searched, no source |
| IFTTT | Unconfirmed | An IFTTT page for uHoo lists one query, a history of uHoo alerts, and no triggers or actions. uHoo's own support, Caeli and app pages do not mention IFTTT, so the service may be legacy. We could not confirm whether it works with current devices or needs a paid IFTTT plan. | IFTTT uHoo page |
| uHoo developer API | Official | uHoo's support page says the Aura API gives polling access so readings can feed building management systems, custom dashboards or analytics tools, and that home plans do not offer raw data export. We did not find public API documentation. Separately, Home Assistant users get an API key in the web dashboard with a Premium plan. | uHoo support Home Assistant uHoo |
Checked 11 November 2026 against the brand's own pages, app store listings and each project's own page. “Not found” means we searched and found nothing, not that it is impossible. Compatibility changes often. Spot an error? Tell us and we will fix it.
Yes. uHoo says Caeli is Matter-certified and works with any Matter-compatible hub or controller. The CSA listing gives specification version 1.4.1, firmware 1.0.10 and a certification date of 28 July 2026. We found no Matter listing for the Aura or the Smart Air Monitor, and no sign that Caeli acts as a bridge or controller.
Yes, officially. uHoo lists Alexa for Caeli, with the same Command requirement for automations. We did not read a dedicated Alexa setup page, and uHoo's App Store listing does not mention Alexa.
Yes, officially. uHoo lists Google Home for Caeli. Viewing air quality is available on all Caeli devices, while IF/THEN rules that trigger other devices need the paid Command add-on at $59 a year.
Yes, officially. uHoo lists Apple Home for Caeli, but does not say how it connects. We did not read a dedicated Apple Home setup page.
Yes. A built-in uHoo integration supports the Smart Air Monitor and Caeli. It is cloud polling, checks every 5 minutes and needs a uHoo Premium plan with an API key made in the web dashboard. It arrived in Home Assistant 2026.2, is rated Silver, and lists an account named getuhoo among its maintainers, though it is part of the Home Assistant project. It listed 9 active installations when we read it.
Yes, officially. uHoo lists SmartThings for Caeli, with the same Command requirement for automations. We did not read a dedicated SmartThings page.
Unconfirmed. We found no Homey app for uHoo. The only Homey page we read is a 2019 forum request for one, which a moderator closed and redirected to an app-request topic. We did not open Homey's app store.
Unconfirmed. We did not find a Hubitat driver in the pages we checked.
Answers come from the sourced table above. See how uHoo compares with all brands on the smart home brand statistics page.
Other brands in Air Quality Monitors.