Apple Home support for Matter Radon Concentration Measurement

Hello Apple Home / Matter Engineering Team,

We are developing a Matter-enabled indoor air quality monitoring device that includes radon measurement.

The device can be successfully commissioned into Apple Home, and Apple Home correctly recognizes and displays the overall Air Quality information. However, the actual Radon concentration measurement is not displayed in the Apple Home app.

We would like to clarify whether this is expected behavior in the current Apple Home implementation.

Specifically:

Does Apple Home currently support displaying the Matter Radon Concentration Measurement separately from the overall Air Quality value?

If supported, which Matter cluster/attributes and device configuration does Apple Home expect?

If our device correctly exposes the applicable Matter Radon Concentration Measurement cluster, should Apple Home display the measured value in the accessory UI?

If Apple Home currently does not expose the Radon concentration in its UI, is there a recommended implementation for Matter accessory manufacturers?

Commissioning and other Matter functionality are working correctly. We are specifically trying to determine whether this behavior is an Apple Home UI/support limitation or whether our Matter implementation needs to be modified.

We can provide our Matter specification version, device type, endpoint/cluster configuration, screenshots, logs, and certification information if needed.

Thank you, JS

We would like to clarify whether this is expected behavior in the current Apple Home implementation.

Yes, it's expected behavior.

Home.app does not currently support Radon metrics.

If Apple Home currently does not expose the Radon concentration in its UI, is there a recommended implementation for Matter accessory manufacturers?

Create your own application and either commission the accessory as your own ecosystem or pair the accessory to HomeKit and then access any unsupported characteristics through the flow linked off of this post:

"In any case, if you're an accessory vendor that's simply trying to send matter commands to your own accessory, then you do NOT need to implement the full matter ecosystem "stack", but can actually send matter command through HomeKit's own ecosystem stack. The details of that process are somewhat involved* but take a look at this and then this forum post for the details of what's required."

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Kevin Elliott
DTS Engineer, CoreOS/Hardware

Apple Home support for Matter Radon Concentration Measurement
 
 
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