diff --git a/homeassistant/components/melcloud/sensor.py b/homeassistant/components/melcloud/sensor.py
index 19be1ea172d..ab4cded5fa7 100644
--- a/homeassistant/components/melcloud/sensor.py
+++ b/homeassistant/components/melcloud/sensor.py
@@ -9,12 +9,10 @@ from pymelcloud import DEVICE_TYPE_ATA, DEVICE_TYPE_ATW
 from pymelcloud.atw_device import Zone
 
 from homeassistant.components.sensor import (
-    DEVICE_CLASS_ENERGY,
-    DEVICE_CLASS_TEMPERATURE,
-    STATE_CLASS_MEASUREMENT,
-    STATE_CLASS_TOTAL_INCREASING,
+    SensorDeviceClass,
     SensorEntity,
     SensorEntityDescription,
+    SensorStateClass,
 )
 from homeassistant.const import ENERGY_KILO_WATT_HOUR, TEMP_CELSIUS
 
@@ -43,7 +41,7 @@ ATA_SENSORS: tuple[MelcloudSensorEntityDescription, ...] = (
         name="Room Temperature",
         icon="mdi:thermometer",
         native_unit_of_measurement=TEMP_CELSIUS,
-        device_class=DEVICE_CLASS_TEMPERATURE,
+        device_class=SensorDeviceClass.TEMPERATURE,
         value_fn=lambda x: x.device.room_temperature,
         enabled=lambda x: True,
     ),
@@ -52,7 +50,7 @@ ATA_SENSORS: tuple[MelcloudSensorEntityDescription, ...] = (
         name="Energy",
         icon="mdi:factory",
         native_unit_of_measurement=ENERGY_KILO_WATT_HOUR,
-        device_class=DEVICE_CLASS_ENERGY,
+        device_class=SensorDeviceClass.ENERGY,
         value_fn=lambda x: x.device.total_energy_consumed,
         enabled=lambda x: x.device.has_energy_consumed_meter,
     ),
@@ -63,7 +61,7 @@ ATW_SENSORS: tuple[MelcloudSensorEntityDescription, ...] = (
         name="Outside Temperature",
         icon="mdi:thermometer",
         native_unit_of_measurement=TEMP_CELSIUS,
-        device_class=DEVICE_CLASS_TEMPERATURE,
+        device_class=SensorDeviceClass.TEMPERATURE,
         value_fn=lambda x: x.device.outside_temperature,
         enabled=lambda x: True,
     ),
@@ -72,7 +70,7 @@ ATW_SENSORS: tuple[MelcloudSensorEntityDescription, ...] = (
         name="Tank Temperature",
         icon="mdi:thermometer",
         native_unit_of_measurement=TEMP_CELSIUS,
-        device_class=DEVICE_CLASS_TEMPERATURE,
+        device_class=SensorDeviceClass.TEMPERATURE,
         value_fn=lambda x: x.device.tank_temperature,
         enabled=lambda x: True,
     ),
@@ -83,7 +81,7 @@ ATW_ZONE_SENSORS: tuple[MelcloudSensorEntityDescription, ...] = (
         name="Room Temperature",
         icon="mdi:thermometer",
         native_unit_of_measurement=TEMP_CELSIUS,
-        device_class=DEVICE_CLASS_TEMPERATURE,
+        device_class=SensorDeviceClass.TEMPERATURE,
         value_fn=lambda zone: zone.room_temperature,
         enabled=lambda x: True,
     ),
@@ -92,7 +90,7 @@ ATW_ZONE_SENSORS: tuple[MelcloudSensorEntityDescription, ...] = (
         name="Flow Temperature",
         icon="mdi:thermometer",
         native_unit_of_measurement=TEMP_CELSIUS,
-        device_class=DEVICE_CLASS_TEMPERATURE,
+        device_class=SensorDeviceClass.TEMPERATURE,
         value_fn=lambda zone: zone.flow_temperature,
         enabled=lambda x: True,
     ),
@@ -101,7 +99,7 @@ ATW_ZONE_SENSORS: tuple[MelcloudSensorEntityDescription, ...] = (
         name="Flow Return Temperature",
         icon="mdi:thermometer",
         native_unit_of_measurement=TEMP_CELSIUS,
-        device_class=DEVICE_CLASS_TEMPERATURE,
+        device_class=SensorDeviceClass.TEMPERATURE,
         value_fn=lambda zone: zone.return_temperature,
         enabled=lambda x: True,
     ),
@@ -152,10 +150,10 @@ class MelDeviceSensor(SensorEntity):
         self._attr_name = f"{api.name} {description.name}"
         self._attr_unique_id = f"{api.device.serial}-{api.device.mac}-{description.key}"
 
-        if description.device_class == DEVICE_CLASS_ENERGY:
-            self._attr_state_class = STATE_CLASS_TOTAL_INCREASING
+        if description.device_class == SensorDeviceClass.ENERGY:
+            self._attr_state_class = SensorStateClass.TOTAL_INCREASING
         else:
-            self._attr_state_class = STATE_CLASS_MEASUREMENT
+            self._attr_state_class = SensorStateClass.MEASUREMENT
 
     @property
     def native_value(self):