Documentation

Gauge visualization

The Gauge visualization displays the most recent value for a time series in a gauge.

Gauge example

Select the Gauge option from the visualization dropdown in the upper left.

Gauge behavior

The gauge visualization displays a single numeric data point within a defined spectrum (default is 0-100). It uses the latest point in the first table (or series) returned by the query.

Queries should return one table

Flux does not guarantee the order in which tables are returned. If a query returns multiple tables (or series), the table order can change between query executions and result in the Gauge displaying inconsistent data. For consistent results, the Gauge query should return a single table.

Gauge Controls

To view Gauge controls, click Customize next to the visualization dropdown.

  • Value Prefix: Prefix to add to the gauge value.
  • Value Suffix: Suffix to add to the gauge value.
  • Axis Prefix: Prefix to add to the gauge axis.
  • Axis Suffix: Suffix to add to the gauge axis.
  • Decimal Places: The number of decimal places to display for the gauge.
    • Auto or Custom: Enable or disable auto-setting.
Colorized Thresholds
  • Add a Threshold: Change the color of the gauge based on the current value.
    • Minimum: Enter the minimum value at which the gauge should appear in the selected color. Choose a color from the dropdown menu next to the value.
    • Maximum: Enter the maximum value at which the gauge should appear in the selected color. Choose a color from the dropdown menu next to the value.

Gauge examples

Gauge visualizations are useful for showing the current value of a metric and displaying where it falls within a spectrum.

Steam pressure gauge

The following example queries sensor data that tracks the pressure of steam pipes in a facility and displays it as a gauge.

Query pressure data from a specific sensor
from(bucket: "example-bucket")
    |> range(start: -1m)
    |> filter(fn: (r) => r._measurement == "steam-sensors" and r._field == "psi" <INVALID_OP> r.sensorID == "a211i")
Visualization options for pressure gauge
Pressure gauge example

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The future of Flux

Flux is going into maintenance mode. You can continue using it as you currently are without any changes to your code.

Flux is going into maintenance mode and will not be supported in InfluxDB 3.0. This was a decision based on the broad demand for SQL and the continued growth and adoption of InfluxQL. We are continuing to support Flux for users in 1.x and 2.x so you can continue using it with no changes to your code. If you are interested in transitioning to InfluxDB 3.0 and want to future-proof your code, we suggest using InfluxQL.

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