Humidity progress bar with background

Who it’s for

Building managers, HVAC engineers, and environmental monitoring teams ask “where does the humidity sit on the scale right now?” They use this bar on dedicated building management displays or reception screens where a background image gives the widget a polished, site-specific look.

What it does

A sensor reading 52% fills the bar to 52% of its full scale in blue — Comfortable — over the preset background. At 28% the bar fills to 28% and turns orange — Dry. At 85% the fill shifts to deep blue — Very Humid.

• Horizontal progress bar that fills left to right as humidity rises, scaled from 0 to 100%
• Color-coded fill that changes across five humidity segments: red for Very Dry, orange for Dry, blue for Comfortable, dark blue for Humid, deep blue for Very Humid
• Decorative background image bundled with the widget, with a white overlay that keeps the text readable
• Numeric value and label displayed alongside the bar
• Last-updated timestamp showing how long ago the reading arrived
• Shows one sensor’s data; it does not chart history or compare multiple zones

How to set up

Data keys

Key	Role	Type	Description
humidity	Bar value	Timeseries	Relative humidity in %; change the key name to match your device’s telemetry key

The widget ships with a simulated function datasource key labeled humidity, 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.

If the key has never reported, the bar renders empty.

Value ranges

Range (%)	Level	Color
0–20	Very Dry	Red
20–40	Dry	Orange
40–60	Comfortable	Blue
60–80	Humid	Dark Blue
80–100	Very Humid	Deep Blue

How to customize

• To swap the background image — open the widget settings and set Background to a different image or switch to a solid color.
• To adjust how much the background shows through — change the Overlay opacity; lower values reveal more of the image, higher values push it further back.
• To use your own humidity thresholds — edit the Color ranges; the bar segments shift automatically.
• To hide the value or timestamp — turn off Show value or Show date.

Tips

• The scale is fixed at 0–100% because relative humidity is always a percentage. There is no need to adjust Tick min or Tick max.
• If the background image reduces contrast, raise the Overlay opacity to keep the text readable from a distance.