Get unit from sensor using zwavejs2mqtt

Configuration Z-Wave
1

I need to check the unit of a sensor. This information is visible in zwavejs2mqtt. How can I access this information in Home Assistant (template)?

2

Try unit_of_measurement.

{{ state_attr("entity_name", "unit_of_measurement") }}
3

Thanks, is this value updated, if zwavejs reports something else?

4

I don’t think so. That one is based on your unit preferences, and is what is used in conjunction with the sensor state.

There’s also a native_unit_of_measurement, I think that should reflect the unit reported by the driver.

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5

Unfortunately the device reports null.

6

It’s possible that property isn’t available to templates.

7

So this is not accessible for me then?

8

Not from templates at least. State object attributes are documented here. Native unit is not exposed.

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9

Just curious, why do you need it?

10

My motion sensor from Fibaro has a known (but not solvable) issue that it reports the wrong values. My guess is, that it reports lux instead of °C. I can cover most cases with a upper and lower limit (e.g. 100°C), but if the brightness is at 30 lx it still might be triggering 30 °C (or lux but for temperature). These are rare cases, but they will happen, I guess.

My previous software could do that and I never had any false values for years.