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Efficiency card

  • Widget
  • 13 installs
  • v1.0.0
  • Jun 15, 2026
  • MIT license
  • v4.2+

Displays the latest efficiency telemetry in a scalable rectangle card.

Widget Type
  • Latest
Category
  • Cards & Info
Use Cases
  • Industrial Automation
  • Predictive Maintenance
  • Smart Energy

Who it’s for

Plant operators, maintenance engineers, and energy managers ask “what is the current efficiency level for this asset and how is it performing?” They need a single-value card that communicates performance status at a glance.

What it does

A device reporting efficiency = 75% renders the current value in a card color-coded by performance level: red for Low (below 40%), orange for Moderate (40–60%), green for Good (60–80%), and blue for Excellent (above 80%).

  • Live efficiency reading in % with color coding across four performance bands
  • Color-coded icon and value make the performance level immediately visible
  • Shows one asset’s data per widget; add multiple widgets to monitor different machines side by side

How to set up

Data keys

KeyRoleTypeDescription
efficiencyMain valueTimeseriesEfficiency percentage (0–100); change the key name to match your device’s telemetry key

The widget ships with a simulated function datasource key labeled Efficiency, 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

RangeLevelColor
0–40LowRed
40–60ModerateOrange
60–80GoodGreen
80+ExcellentBlue

How to customize

  • To change the performance 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 card colors — edit the color for each performance band in the widget settings.
  • To rename the units label — change the Units field in the widget settings if needed.

Tips

  • Place one card per production unit on a plant-floor overview screen so operators can scan efficiency status across all machines without drilling into individual dashboards.
  • A red or orange card is an actionable signal — pair this widget with an alarm rule on the same key so the card color and the alarm list stay in sync.
  • Use consistent performance colors across all efficiency widgets.

Share Your Widget with the Community

Built a custom widget? Export it as a JSON from ThingsBoard and publish it to the IoT Hub through a simple 4-step wizard (Upload, Listing, Readme, Review & Submit). Share it with thousands of ThingsBoard developers worldwide and get featured in the catalog.