Noise level card

Who it’s for

Environmental compliance officers, city planners, and building managers ask “how loud is it out there right now?” They need a single card that confirms whether ambient noise is within acceptable limits or has crossed into a range that requires action.

What it does

A sensor reading 62 dB shows an orange icon and value — Moderate — indicating noise above comfortable background levels. The same card shows green at 40 dB — Quiet — and red at 95 dB — Hazardous.

• Color-coded icon and value that shift across four noise bands from Quiet to Hazardous
• Last-updated timestamp showing how long ago the reading arrived
• Shows one sensor’s data; it does not chart trends or compare multiple monitoring points

How to set up

Data keys

Key	Role	Type	Description
noise	Main value	Timeseries	Ambient noise level in dB; change the key name to match your device’s telemetry key

The widget ships with a simulated function datasource key labeled Noise level, so it draws random values until you point the datasource at a device and rename the key.

To point it at your own device: open the dashboard in edit mode, open the widget’s Datasources, pick the entity or entity alias, and replace the function key with the key your device reports.

The card shows the value in dB with no decimal places. If the key has never reported, the card displays the label and icon with an empty value, not an error.

Value ranges

Range	Level	Color
0–50	Quiet	Green
50–70	Moderate	Orange
70–90	Loud	Dark Orange
90+	Hazardous	Red

How to customize

• To use your own noise thresholds — edit Icon color ranges and Value color ranges; set the same boundaries in both so the icon and the number always agree.
• To change the icon — set Icon to any Material or MDI icon name.
• To hide the label, icon, or timestamp — turn off Show label, Show icon, or Show date.
• To switch to an absolute timestamp — turn off Last update ago in the date format settings.
• To match your dashboard’s fonts — set Value font and Label font.

Tips

• Keep Icon color ranges and Value color ranges on the same boundaries so the icon and the number always show the same band.
• WHO guidelines recommend daytime outdoor noise below 55 dB and nighttime below 45 dB for residential areas. The default Quiet band (0–50 dB) aligns with these targets.