diff --git a/homeassistant/components/eliqonline/sensor.py b/homeassistant/components/eliqonline/sensor.py
index 9b81ebad78a..bea60b94a1c 100644
--- a/homeassistant/components/eliqonline/sensor.py
+++ b/homeassistant/components/eliqonline/sensor.py
@@ -10,10 +10,11 @@ import voluptuous as vol
 
 from homeassistant.components.sensor import (
     PLATFORM_SCHEMA,
+    SensorDeviceClass,
     SensorEntity,
     SensorStateClass,
 )
-from homeassistant.const import CONF_ACCESS_TOKEN, CONF_NAME, POWER_WATT
+from homeassistant.const import CONF_ACCESS_TOKEN, CONF_NAME, UnitOfPower
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
@@ -26,12 +27,8 @@ CONF_CHANNEL_ID = "channel_id"
 
 DEFAULT_NAME = "ELIQ Online"
 
-ICON = "mdi:gauge"
-
 SCAN_INTERVAL = timedelta(seconds=60)
 
-UNIT_OF_MEASUREMENT = POWER_WATT
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
     {
         vol.Required(CONF_ACCESS_TOKEN): cv.string,
@@ -68,41 +65,22 @@ async def async_setup_platform(
 class EliqSensor(SensorEntity):
     """Implementation of an ELIQ Online sensor."""
 
+    _attr_device_class = SensorDeviceClass.POWER
+    _attr_native_unit_of_measurement = UnitOfPower.WATT
     _attr_state_class = SensorStateClass.MEASUREMENT
 
     def __init__(self, api, channel_id, name):
         """Initialize the sensor."""
-        self._name = name
-        self._state = None
+        self._attr_name = name
         self._api = api
         self._channel_id = channel_id
 
-    @property
-    def name(self):
-        """Return the name of the sensor."""
-        return self._name
-
-    @property
-    def icon(self):
-        """Return icon."""
-        return ICON
-
-    @property
-    def native_unit_of_measurement(self):
-        """Return the unit of measurement of this entity, if any."""
-        return UNIT_OF_MEASUREMENT
-
-    @property
-    def native_value(self):
-        """Return the state of the device."""
-        return self._state
-
     async def async_update(self) -> None:
         """Get the latest data."""
         try:
             response = await self._api.get_data_now(channelid=self._channel_id)
-            self._state = int(response["power"])
-            _LOGGER.debug("Updated power from server %d W", self._state)
+            self._attr_native_value = int(response["power"])
+            _LOGGER.debug("Updated power from server %d W", self.native_value)
         except KeyError:
             _LOGGER.warning("Invalid response from ELIQ Online API")
         except (OSError, asyncio.TimeoutError) as error: