Allow kV (Kilo Volt) for device class: voltage

[lschloetterer]

The problem

I'm seeing this error in the logs

Logger: homeassistant.components.sensor
Quelle: components/sensor/__init__.py:709
Integration: Sensor (Dokumentation, Probleme)
Erstmals aufgetreten: 14:49:24 (1 Vorkommnisse)
Zuletzt protokolliert: 14:49:24

Entity sensor.heizung_partikelabscheider_spannung (<class 'homeassistant.components.mqtt.sensor.MqttSensor'>) is using native unit of measurement 'kV' which is not a valid unit for the device class ('voltage') it is using; expected one of ['mV', 'µV', 'V']; Please update your configuration if your entity is manually configured, otherwise create a bug report at https://github.com/home-assistant/core/issues?q=is%3Aopen+is%3Aissue+label%3A%22integration%3A+mqtt%22

The custom mqtt sensor is set up with these values:

unit_of_measurement: "kV"
state_class: "measurement"
device_class: "voltage"

Everything works fine, but I think all metric prefixes should be allowed without warnings in the log.

What version of Home Assistant Core has the issue?

core-2025.1.0

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant OS

Integration causing the issue

mqtt

Link to integration documentation on our website

https://www.home-assistant.io/integrations/sensor/

Diagnostics information

No response

Example YAML snippet

No response

Anything in the logs that might be useful for us?

No response

Additional information

No response

[mib1185]

Hi @lschloetterer

This sounds more like an feature request?
Please use the feature request section of our forum to contribute on existing or create new feature requests.
For sure, contributions are always welcome, so please feel free to create a PR on your own.

Thanks! 👍