Min/Max


The Min/Max integration consumes the state from other sensors to determine the minimum, maximum, latest (last), mean and median of the collected states.

The sensor provided by this integration will always show you the lowest/highest/latest value which was received from all monitored sensors. If you have spikes in your values, it’s recommended to filter/equalize your values with a statistics sensor first.

If the source sensor provides an unknown state, it will be ignored in the calculation. If the unit of measurement of the sensors differs, the Min/Max sensor will go to an error state where the value is UNKNOWN and unit of measurement is ERR.

Configuration

Adding Min/Max to your Home Assistant instance can be done via the user interface, by using this My button:

Manual configuration steps
Name

The name the sensor should have. You can change it again later.

Input entities

At least two entities to monitor. All entities must use the same unit of measurement.

Type

The type of the sensor, this can be either “min”, “max”, “last”, “mean”, or “median”.

Precision

Round the calculated mean or median value to at most N decimal places.

YAML Configuration

Alternatlively, this integration can be configured and set up manually via YAML instead. To enable the Integration sensor in your installation, add the following to your configuration.yaml file:

# Example configuration.yaml entry
sensor:
  - platform: min_max
    entity_ids:
      - sensor.kitchen_temperature
      - sensor.living_room_temperature
      - sensor.office_temperature

Configuration Variables

entity_ids list | string Required

At least two entities to monitor. The unit of measurement of the first entry will be the one that’s used. All entities must use the same unit of measurement.

type string (Optional, default: max)

The type of sensor: min, max, last, mean or median.

name string (Optional)

Name of the sensor to use in the frontend.

round_digits integer (Optional, default: 2)

Round mean or median value to specified number of digits.