Use UnitOfVolume in integrations (#83646)

homeassistant/components/dsmr/sensor.py

@@ -28,7 +28,7 @@ from homeassistant.const import (
     CONF_HOST,
     CONF_PORT,
     EVENT_HOMEASSISTANT_STOP,
-    VOLUME_CUBIC_METERS,
+    UnitOfVolume,
 )
 from homeassistant.core import CoreState, Event, HomeAssistant, callback
 from homeassistant.helpers.entity import DeviceInfo, EntityCategory
@@ -55,7 +55,7 @@ from .const import (
     LOGGER,
 )
 
-UNIT_CONVERSION = {"m3": VOLUME_CUBIC_METERS}
+UNIT_CONVERSION = {"m3": UnitOfVolume.CUBIC_METERS}
 
 
 @dataclass

homeassistant/components/flo/sensor.py

@@ -7,12 +7,7 @@ from homeassistant.components.sensor import (
     SensorStateClass,
 )
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import (
+from homeassistant.const import PERCENTAGE, PRESSURE_PSI, TEMP_FAHRENHEIT, UnitOfVolume
-    PERCENTAGE,
-    PRESSURE_PSI,
-    TEMP_FAHRENHEIT,
-    VOLUME_GALLONS,
-)
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
@@ -68,7 +63,7 @@ class FloDailyUsageSensor(FloEntity, SensorEntity):
     """Monitors the daily water usage."""
 
     _attr_icon = WATER_ICON
-    _attr_native_unit_of_measurement = VOLUME_GALLONS
+    _attr_native_unit_of_measurement = UnitOfVolume.GALLONS
     _attr_state_class: SensorStateClass = SensorStateClass.TOTAL_INCREASING
     _attr_device_class = SensorDeviceClass.WATER
 

homeassistant/components/flume/sensor.py

@@ -10,7 +10,7 @@ from homeassistant.components.sensor import (
     SensorStateClass,
 )
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import VOLUME_GALLONS
+from homeassistant.const import UnitOfVolume
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
@@ -35,45 +35,45 @@ FLUME_QUERIES_SENSOR: tuple[SensorEntityDescription, ...] = (
     SensorEntityDescription(
         key="current_interval",
         name="Current",
-        native_unit_of_measurement=f"{VOLUME_GALLONS}/m",
+        native_unit_of_measurement=f"{UnitOfVolume.GALLONS}/m",
     ),
     SensorEntityDescription(
         key="month_to_date",
         name="Current Month",
-        native_unit_of_measurement=VOLUME_GALLONS,
+        native_unit_of_measurement=UnitOfVolume.GALLONS,
         device_class=SensorDeviceClass.WATER,
         state_class=SensorStateClass.TOTAL_INCREASING,
     ),
     SensorEntityDescription(
         key="week_to_date",
         name="Current Week",
-        native_unit_of_measurement=VOLUME_GALLONS,
+        native_unit_of_measurement=UnitOfVolume.GALLONS,
         device_class=SensorDeviceClass.WATER,
         state_class=SensorStateClass.TOTAL_INCREASING,
     ),
     SensorEntityDescription(
         key="today",
         name="Current Day",
-        native_unit_of_measurement=VOLUME_GALLONS,
+        native_unit_of_measurement=UnitOfVolume.GALLONS,
         device_class=SensorDeviceClass.WATER,
         state_class=SensorStateClass.TOTAL_INCREASING,
     ),
     SensorEntityDescription(
         key="last_60_min",
         name="60 Minutes",
-        native_unit_of_measurement=f"{VOLUME_GALLONS}/h",
+        native_unit_of_measurement=f"{UnitOfVolume.GALLONS}/h",
         state_class=SensorStateClass.MEASUREMENT,
     ),
     SensorEntityDescription(
         key="last_24_hrs",
         name="24 Hours",
-        native_unit_of_measurement=f"{VOLUME_GALLONS}/d",
+        native_unit_of_measurement=f"{UnitOfVolume.GALLONS}/d",
         state_class=SensorStateClass.MEASUREMENT,
     ),
     SensorEntityDescription(
         key="last_30_days",
         name="30 Days",
-        native_unit_of_measurement=f"{VOLUME_GALLONS}/mo",
+        native_unit_of_measurement=f"{UnitOfVolume.GALLONS}/mo",
         state_class=SensorStateClass.MEASUREMENT,
     ),
 )

homeassistant/components/homematic/sensor.py

@@ -24,10 +24,10 @@ from homeassistant.const import (
     POWER_WATT,
     PRESSURE_HPA,
     TEMP_CELSIUS,
-    VOLUME_CUBIC_METERS,
     UnitOfElectricCurrent,
     UnitOfPrecipitationDepth,
     UnitOfSpeed,
+    UnitOfVolume,
 )
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
@@ -154,13 +154,13 @@ SENSOR_DESCRIPTIONS: dict[str, SensorEntityDescription] = {
     ),
     "GAS_POWER": SensorEntityDescription(
         key="GAS_POWER",
-        native_unit_of_measurement=VOLUME_CUBIC_METERS,
+        native_unit_of_measurement=UnitOfVolume.CUBIC_METERS,
         device_class=SensorDeviceClass.GAS,
         state_class=SensorStateClass.MEASUREMENT,
     ),
     "GAS_ENERGY_COUNTER": SensorEntityDescription(
         key="GAS_ENERGY_COUNTER",
-        native_unit_of_measurement=VOLUME_CUBIC_METERS,
+        native_unit_of_measurement=UnitOfVolume.CUBIC_METERS,
         device_class=SensorDeviceClass.GAS,
         state_class=SensorStateClass.TOTAL_INCREASING,
     ),

homeassistant/components/homewizard/sensor.py

@@ -15,7 +15,7 @@ from homeassistant.const import (
     ENERGY_KILO_WATT_HOUR,
     PERCENTAGE,
     POWER_WATT,
-    VOLUME_CUBIC_METERS,
+    UnitOfVolume,
 )
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity import EntityCategory
@@ -115,7 +115,7 @@ SENSORS: Final[tuple[SensorEntityDescription, ...]] = (
     SensorEntityDescription(
         key="total_gas_m3",
         name="Total gas",
-        native_unit_of_measurement=VOLUME_CUBIC_METERS,
+        native_unit_of_measurement=UnitOfVolume.CUBIC_METERS,
         device_class=SensorDeviceClass.GAS,
         state_class=SensorStateClass.TOTAL_INCREASING,
     ),
@@ -129,7 +129,7 @@ SENSORS: Final[tuple[SensorEntityDescription, ...]] = (
     SensorEntityDescription(
         key="total_liter_m3",
         name="Total water usage",
-        native_unit_of_measurement=VOLUME_CUBIC_METERS,
+        native_unit_of_measurement=UnitOfVolume.CUBIC_METERS,
         icon="mdi:gauge",
         device_class=SensorDeviceClass.WATER,
         state_class=SensorStateClass.TOTAL_INCREASING,

homeassistant/components/justnimbus/sensor.py

@@ -17,7 +17,7 @@ from homeassistant.const import (
     PRESSURE_BAR,
     TEMP_CELSIUS,
     TIME_HOURS,
-    VOLUME_LITERS,
+    UnitOfVolume,
 )
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity import EntityCategory
@@ -102,7 +102,7 @@ SENSOR_TYPES = (
         key="reservoir_content",
         name="Reservoir content",
         icon="mdi:car-coolant-level",
-        native_unit_of_measurement=VOLUME_LITERS,
+        native_unit_of_measurement=UnitOfVolume.LITERS,
         device_class=SensorDeviceClass.VOLUME,
         state_class=SensorStateClass.MEASUREMENT,
         entity_category=EntityCategory.DIAGNOSTIC,
@@ -112,7 +112,7 @@ SENSOR_TYPES = (
         key="total_saved",
         name="Total saved",
         icon="mdi:water-opacity",
-        native_unit_of_measurement=VOLUME_LITERS,
+        native_unit_of_measurement=UnitOfVolume.LITERS,
         device_class=SensorDeviceClass.VOLUME,
         state_class=SensorStateClass.TOTAL_INCREASING,
         entity_category=EntityCategory.DIAGNOSTIC,
@@ -122,7 +122,7 @@ SENSOR_TYPES = (
         key="total_replenished",
         name="Total replenished",
         icon="mdi:water",
-        native_unit_of_measurement=VOLUME_LITERS,
+        native_unit_of_measurement=UnitOfVolume.LITERS,
         device_class=SensorDeviceClass.VOLUME,
         state_class=SensorStateClass.TOTAL_INCREASING,
         entity_category=EntityCategory.DIAGNOSTIC,
@@ -140,7 +140,7 @@ SENSOR_TYPES = (
         key="totver",
         name="Total use",
         icon="mdi:chart-donut",
-        native_unit_of_measurement=VOLUME_LITERS,
+        native_unit_of_measurement=UnitOfVolume.LITERS,
         device_class=SensorDeviceClass.VOLUME,
         state_class=SensorStateClass.TOTAL_INCREASING,
         entity_category=EntityCategory.DIAGNOSTIC,
@@ -150,7 +150,7 @@ SENSOR_TYPES = (
         key="reservoir_content_max",
         name="Max reservoir content",
         icon="mdi:waves",
-        native_unit_of_measurement=VOLUME_LITERS,
+        native_unit_of_measurement=UnitOfVolume.LITERS,
         device_class=SensorDeviceClass.VOLUME,
         state_class=SensorStateClass.TOTAL,
         entity_category=EntityCategory.DIAGNOSTIC,

homeassistant/components/kegtron/sensor.py

@@ -22,7 +22,7 @@ from homeassistant.components.sensor import (
     SensorEntityDescription,
     SensorStateClass,
 )
-from homeassistant.const import SIGNAL_STRENGTH_DECIBELS_MILLIWATT, VOLUME_LITERS
+from homeassistant.const import SIGNAL_STRENGTH_DECIBELS_MILLIWATT, UnitOfVolume
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity import EntityCategory
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
@@ -39,7 +39,7 @@ SENSOR_DESCRIPTIONS = {
     KegtronSensorDeviceClass.KEG_SIZE: SensorEntityDescription(
         key=KegtronSensorDeviceClass.KEG_SIZE,
         icon="mdi:keg",
-        native_unit_of_measurement=VOLUME_LITERS,
+        native_unit_of_measurement=UnitOfVolume.LITERS,
         device_class=SensorDeviceClass.VOLUME,
         state_class=SensorStateClass.MEASUREMENT,
     ),
@@ -50,14 +50,14 @@ SENSOR_DESCRIPTIONS = {
     KegtronSensorDeviceClass.VOLUME_START: SensorEntityDescription(
         key=KegtronSensorDeviceClass.VOLUME_START,
         icon="mdi:keg",
-        native_unit_of_measurement=VOLUME_LITERS,
+        native_unit_of_measurement=UnitOfVolume.LITERS,
         device_class=SensorDeviceClass.VOLUME,
         state_class=SensorStateClass.MEASUREMENT,
     ),
     KegtronSensorDeviceClass.VOLUME_DISPENSED: SensorEntityDescription(
         key=KegtronSensorDeviceClass.VOLUME_DISPENSED,
         icon="mdi:keg",
-        native_unit_of_measurement=VOLUME_LITERS,
+        native_unit_of_measurement=UnitOfVolume.LITERS,
         device_class=SensorDeviceClass.VOLUME,
         state_class=SensorStateClass.TOTAL,
     ),

homeassistant/components/nsw_fuel_station/sensor.py

@@ -6,7 +6,7 @@ import logging
 import voluptuous as vol
 
 from homeassistant.components.sensor import PLATFORM_SCHEMA, SensorEntity
-from homeassistant.const import CURRENCY_CENT, VOLUME_LITERS
+from homeassistant.const import CURRENCY_CENT, UnitOfVolume
 from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
@@ -127,7 +127,7 @@ class StationPriceSensor(
     @property
     def native_unit_of_measurement(self) -> str:
         """Return the units of measurement."""
-        return f"{CURRENCY_CENT}/{VOLUME_LITERS}"
+        return f"{CURRENCY_CENT}/{UnitOfVolume.LITERS}"
 
     def _get_station_name(self):
         default_name = f"station {self._station_id}"

homeassistant/components/omnilogic/sensor.py

@@ -10,7 +10,7 @@ from homeassistant.const import (
     PERCENTAGE,
     TEMP_CELSIUS,
     TEMP_FAHRENHEIT,
-    VOLUME_LITERS,
+    UnitOfVolume,
 )
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
@@ -174,7 +174,7 @@ class OmniLogicSaltLevelSensor(OmnilogicSensor):
 
         if self._unit_type == "Metric":
             salt_return = round(int(salt_return) / 1000, 2)
-            unit_of_measurement = f"{MASS_GRAMS}/{VOLUME_LITERS}"
+            unit_of_measurement = f"{MASS_GRAMS}/{UnitOfVolume.LITERS}"
 
         self._unit = unit_of_measurement
 

homeassistant/components/p1_monitor/sensor.py

@@ -17,9 +17,8 @@ from homeassistant.const import (
     ELECTRIC_POTENTIAL_VOLT,
     ENERGY_KILO_WATT_HOUR,
     POWER_WATT,
-    VOLUME_CUBIC_METERS,
-    VOLUME_LITERS,
     UnitOfElectricCurrent,
+    UnitOfVolume,
 )
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.device_registry import DeviceEntryType
@@ -42,7 +41,7 @@ SENSORS_SMARTMETER: tuple[SensorEntityDescription, ...] = (
         key="gas_consumption",
         name="Gas Consumption",
         entity_registry_enabled_default=False,
-        native_unit_of_measurement=VOLUME_CUBIC_METERS,
+        native_unit_of_measurement=UnitOfVolume.CUBIC_METERS,
         device_class=SensorDeviceClass.GAS,
         state_class=SensorStateClass.TOTAL_INCREASING,
     ),
@@ -188,7 +187,7 @@ SENSORS_SETTINGS: tuple[SensorEntityDescription, ...] = (
         name="Gas Consumption Price",
         entity_registry_enabled_default=False,
         state_class=SensorStateClass.MEASUREMENT,
-        native_unit_of_measurement=f"{CURRENCY_EURO}/{VOLUME_CUBIC_METERS}",
+        native_unit_of_measurement=f"{CURRENCY_EURO}/{UnitOfVolume.CUBIC_METERS}",
     ),
     SensorEntityDescription(
         key="energy_consumption_price_low",
@@ -221,14 +220,14 @@ SENSORS_WATERMETER: tuple[SensorEntityDescription, ...] = (
         key="consumption_day",
         name="Consumption Day",
         state_class=SensorStateClass.TOTAL_INCREASING,
-        native_unit_of_measurement=VOLUME_LITERS,
+        native_unit_of_measurement=UnitOfVolume.LITERS,
         device_class=SensorDeviceClass.WATER,
     ),
     SensorEntityDescription(
         key="consumption_total",
         name="Consumption Total",
         state_class=SensorStateClass.TOTAL_INCREASING,
-        native_unit_of_measurement=VOLUME_CUBIC_METERS,
+        native_unit_of_measurement=UnitOfVolume.CUBIC_METERS,
         device_class=SensorDeviceClass.WATER,
     ),
     SensorEntityDescription(

homeassistant/components/plugwise/sensor.py

@@ -15,7 +15,7 @@ from homeassistant.const import (
     POWER_WATT,
     PRESSURE_BAR,
     TEMP_CELSIUS,
-    VOLUME_CUBIC_METERS,
+    UnitOfVolume,
 )
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity import EntityCategory
@@ -222,14 +222,14 @@ SENSORS: tuple[SensorEntityDescription, ...] = (
     SensorEntityDescription(
         key="gas_consumed_interval",
         name="Gas consumed interval",
-        native_unit_of_measurement=VOLUME_CUBIC_METERS,
+        native_unit_of_measurement=UnitOfVolume.CUBIC_METERS,
         device_class=SensorDeviceClass.GAS,
         state_class=SensorStateClass.TOTAL,
     ),
     SensorEntityDescription(
         key="gas_consumed_cumulative",
         name="Gas consumed cumulative",
-        native_unit_of_measurement=VOLUME_CUBIC_METERS,
+        native_unit_of_measurement=UnitOfVolume.CUBIC_METERS,
         device_class=SensorDeviceClass.GAS,
         state_class=SensorStateClass.TOTAL,
     ),

homeassistant/components/renault/sensor.py

@@ -29,7 +29,7 @@ from homeassistant.const import (
     POWER_KILO_WATT,
     TEMP_CELSIUS,
     TIME_MINUTES,
-    VOLUME_LITERS,
+    UnitOfVolume,
 )
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
@@ -312,7 +312,7 @@ SENSOR_TYPES: tuple[RenaultSensorEntityDescription[Any], ...] = (
         entity_class=RenaultSensor[KamereonVehicleCockpitData],
         icon="mdi:fuel",
         name="Fuel quantity",
-        native_unit_of_measurement=VOLUME_LITERS,
+        native_unit_of_measurement=UnitOfVolume.LITERS,
         state_class=SensorStateClass.MEASUREMENT,
         requires_fuel=True,
         value_lambda=_get_rounded_value,

homeassistant/components/starline/sensor.py

@@ -14,7 +14,7 @@ from homeassistant.const import (
     LENGTH_KILOMETERS,
     PERCENTAGE,
     TEMP_CELSIUS,
-    VOLUME_LITERS,
+    UnitOfVolume,
 )
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
@@ -160,7 +160,7 @@ class StarlineSensor(StarlineEntity, SensorEntity):
             if type_value == "percents":
                 return PERCENTAGE
             if type_value == "litres":
-                return VOLUME_LITERS
+                return UnitOfVolume.LITERS
         return self.entity_description.native_unit_of_measurement
 
     @property

homeassistant/components/subaru/sensor.py

@@ -18,8 +18,7 @@ from homeassistant.const import (
     LENGTH_MILES,
     PERCENTAGE,
     PRESSURE_HPA,
-    VOLUME_GALLONS,
+    UnitOfVolume,
-    VOLUME_LITERS,
 )
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.helpers import entity_registry as er
@@ -55,7 +54,7 @@ _LOGGER = logging.getLogger(__name__)
 FUEL_CONSUMPTION_LITERS_PER_HUNDRED_KILOMETERS = "L/100km"
 FUEL_CONSUMPTION_MILES_PER_GALLON = "mi/gal"
 
-L_PER_GAL = VolumeConverter.convert(1, VOLUME_GALLONS, VOLUME_LITERS)
+L_PER_GAL = VolumeConverter.convert(1, UnitOfVolume.GALLONS, UnitOfVolume.LITERS)
 KM_PER_MI = DistanceConverter.convert(1, LENGTH_MILES, LENGTH_KILOMETERS)
 
 # Sensor available to "Subaru Safety Plus" subscribers with Gen1 or Gen2 vehicles

homeassistant/components/surepetcare/sensor.py

@@ -9,7 +9,7 @@ from surepy.enums import EntityType
 
 from homeassistant.components.sensor import SensorDeviceClass, SensorEntity
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import ATTR_VOLTAGE, PERCENTAGE, VOLUME_MILLILITERS
+from homeassistant.const import ATTR_VOLTAGE, PERCENTAGE, UnitOfVolume
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.helpers.entity import EntityCategory
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
@@ -88,7 +88,7 @@ class Felaqua(SurePetcareEntity, SensorEntity):
     """Sure Petcare Felaqua."""
 
     _attr_device_class = SensorDeviceClass.VOLUME
-    _attr_native_unit_of_measurement = VOLUME_MILLILITERS
+    _attr_native_unit_of_measurement = UnitOfVolume.MILLILITERS
 
     def __init__(
         self, surepetcare_id: int, coordinator: SurePetcareDataCoordinator

homeassistant/components/toon/sensor.py

@@ -15,7 +15,7 @@ from homeassistant.const import (
     PERCENTAGE,
     POWER_WATT,
     TEMP_CELSIUS,
-    VOLUME_CUBIC_METERS,
+    UnitOfVolume,
 )
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
@@ -164,7 +164,7 @@ SENSOR_ENTITIES: tuple[ToonSensorEntityDescription, ...] = (
         section="gas_usage",
         measurement="day_average",
         device_class=SensorDeviceClass.GAS,
-        native_unit_of_measurement=VOLUME_CUBIC_METERS,
+        native_unit_of_measurement=UnitOfVolume.CUBIC_METERS,
         entity_registry_enabled_default=False,
         cls=ToonGasMeterDeviceSensor,
     ),
@@ -174,7 +174,7 @@ SENSOR_ENTITIES: tuple[ToonSensorEntityDescription, ...] = (
         section="gas_usage",
         measurement="day_usage",
         device_class=SensorDeviceClass.GAS,
-        native_unit_of_measurement=VOLUME_CUBIC_METERS,
+        native_unit_of_measurement=UnitOfVolume.CUBIC_METERS,
         cls=ToonGasMeterDeviceSensor,
     ),
     ToonSensorEntityDescription(
@@ -193,7 +193,7 @@ SENSOR_ENTITIES: tuple[ToonSensorEntityDescription, ...] = (
         name="Gas Meter",
         section="gas_usage",
         measurement="meter",
-        native_unit_of_measurement=VOLUME_CUBIC_METERS,
+        native_unit_of_measurement=UnitOfVolume.CUBIC_METERS,
         state_class=SensorStateClass.TOTAL_INCREASING,
         device_class=SensorDeviceClass.GAS,
         cls=ToonGasMeterDeviceSensor,
@@ -312,7 +312,7 @@ SENSOR_ENTITIES: tuple[ToonSensorEntityDescription, ...] = (
         name="Average Daily Water Usage",
         section="water_usage",
         measurement="day_average",
-        native_unit_of_measurement=VOLUME_CUBIC_METERS,
+        native_unit_of_measurement=UnitOfVolume.CUBIC_METERS,
         icon="mdi:water",
         entity_registry_enabled_default=False,
         cls=ToonWaterMeterDeviceSensor,
@@ -323,7 +323,7 @@ SENSOR_ENTITIES: tuple[ToonSensorEntityDescription, ...] = (
         name="Water Usage Today",
         section="water_usage",
         measurement="day_usage",
-        native_unit_of_measurement=VOLUME_CUBIC_METERS,
+        native_unit_of_measurement=UnitOfVolume.CUBIC_METERS,
         icon="mdi:water",
         entity_registry_enabled_default=False,
         cls=ToonWaterMeterDeviceSensor,
@@ -334,7 +334,7 @@ SENSOR_ENTITIES: tuple[ToonSensorEntityDescription, ...] = (
         name="Water Meter",
         section="water_usage",
         measurement="meter",
-        native_unit_of_measurement=VOLUME_CUBIC_METERS,
+        native_unit_of_measurement=UnitOfVolume.CUBIC_METERS,
         icon="mdi:water",
         entity_registry_enabled_default=False,
         state_class=SensorStateClass.TOTAL_INCREASING,

homeassistant/components/youless/sensor.py

@@ -13,7 +13,7 @@ from homeassistant.const import (
     CONF_DEVICE,
     ENERGY_KILO_WATT_HOUR,
     POWER_WATT,
-    VOLUME_CUBIC_METERS,
+    UnitOfVolume,
 )
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity import DeviceInfo
@@ -98,7 +98,7 @@ class YoulessBaseSensor(CoordinatorEntity, SensorEntity):
 class GasSensor(YoulessBaseSensor):
     """The Youless gas sensor."""
 
-    _attr_native_unit_of_measurement = VOLUME_CUBIC_METERS
+    _attr_native_unit_of_measurement = UnitOfVolume.CUBIC_METERS
     _attr_device_class = SensorDeviceClass.GAS
     _attr_state_class = SensorStateClass.TOTAL_INCREASING