Indoor horizontal CO2 card with background

Who it’s for

Facility managers, HVAC engineers, and building managers ask “can I monitor CO2 across many rooms in a compact layout where the severity is still instantly visible?” The horizontal background variant combines space efficiency with the full-card color signal.

What it does

A sensor reporting co2 = 720 ppm displays the reading in a horizontal card whose entire background fills with the severity color: green for Good (0–600 ppm), orange for Moderate (600–800 ppm), and red for High (above 800 ppm).

• Full-card background color makes CO2 status readable across a room without reading the number
• Horizontal layout fits more rooms per row on a multi-zone indoor environment dashboard
• Shows one sensor’s reading per widget; tile multiple widgets to monitor all rooms at a glance

How to set up

Data keys

Key	Role	Type	Description
co2	Main value	Timeseries	CO2 concentration in ppm; change the key name to match your device’s telemetry key

The widget ships with a simulated function datasource key labeled CO2 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.

Value ranges

Range (ppm)	Level	Color
0–600	Good	Green
600–800	Moderate	Orange
800+	High	Red

How to customize

• To change the severity 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 background colors — edit the background color for each severity level in the widget settings.
• To rename the units label — change the Units field in the widget settings if needed.

Tips

• A row of horizontal background cards, one per meeting room, lets the facilities manager see at a glance which spaces are over-occupied during peak hours without scanning individual numbers.
• Use consistent severity colors across all indoor air quality widgets.
• For green building certification audits, the color-coded row provides an instant multi-room snapshot that is easier for auditors to interpret than a table of ppm values.