diff --git a/homeassistant/components/flipr/sensor.py b/homeassistant/components/flipr/sensor.py
index 99b44cc95a0..57044289110 100644
--- a/homeassistant/components/flipr/sensor.py
+++ b/homeassistant/components/flipr/sensor.py
@@ -8,7 +8,7 @@ from homeassistant.components.sensor import (
     SensorStateClass,
 )
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import ELECTRIC_POTENTIAL_MILLIVOLT, PERCENTAGE, TEMP_CELSIUS
+from homeassistant.const import PERCENTAGE, UnitOfElectricPotential, UnitOfTemperature
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
@@ -19,7 +19,7 @@ SENSOR_TYPES: tuple[SensorEntityDescription, ...] = (
     SensorEntityDescription(
         key="chlorine",
         name="Chlorine",
-        native_unit_of_measurement=ELECTRIC_POTENTIAL_MILLIVOLT,
+        native_unit_of_measurement=UnitOfElectricPotential.MILLIVOLT,
         icon="mdi:pool",
         state_class=SensorStateClass.MEASUREMENT,
     ),
@@ -33,7 +33,7 @@ SENSOR_TYPES: tuple[SensorEntityDescription, ...] = (
         key="temperature",
         name="Water Temp",
         device_class=SensorDeviceClass.TEMPERATURE,
-        native_unit_of_measurement=TEMP_CELSIUS,
+        native_unit_of_measurement=UnitOfTemperature.CELSIUS,
         state_class=SensorStateClass.MEASUREMENT,
     ),
     SensorEntityDescription(
@@ -44,7 +44,7 @@ SENSOR_TYPES: tuple[SensorEntityDescription, ...] = (
     SensorEntityDescription(
         key="red_ox",
         name="Red OX",
-        native_unit_of_measurement=ELECTRIC_POTENTIAL_MILLIVOLT,
+        native_unit_of_measurement=UnitOfElectricPotential.MILLIVOLT,
         icon="mdi:pool",
         state_class=SensorStateClass.MEASUREMENT,
     ),
diff --git a/homeassistant/components/omnilogic/sensor.py b/homeassistant/components/omnilogic/sensor.py
index d072cc3d9bd..23cff2382f6 100644
--- a/homeassistant/components/omnilogic/sensor.py
+++ b/homeassistant/components/omnilogic/sensor.py
@@ -5,11 +5,10 @@ from homeassistant.components.sensor import SensorDeviceClass, SensorEntity
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import (
     CONCENTRATION_PARTS_PER_MILLION,
-    ELECTRIC_POTENTIAL_MILLIVOLT,
     PERCENTAGE,
-    TEMP_CELSIUS,
-    TEMP_FAHRENHEIT,
+    UnitOfElectricPotential,
     UnitOfMass,
+    UnitOfTemperature,
     UnitOfVolume,
 )
 from homeassistant.core import HomeAssistant
@@ -108,12 +107,12 @@ class OmniLogicTemperatureSensor(OmnilogicSensor):
         sensor_data = self.coordinator.data[self._item_id][self._state_key]
 
         hayward_state = sensor_data
-        hayward_unit_of_measure = TEMP_FAHRENHEIT
+        hayward_unit_of_measure = UnitOfTemperature.FAHRENHEIT
         state = sensor_data
 
         if self._unit_type == "Metric":
             hayward_state = round((int(hayward_state) - 32) * 5 / 9, 1)
-            hayward_unit_of_measure = TEMP_CELSIUS
+            hayward_unit_of_measure = UnitOfTemperature.CELSIUS
 
         if int(sensor_data) == -1:
             hayward_state = None
@@ -122,7 +121,7 @@ class OmniLogicTemperatureSensor(OmnilogicSensor):
         self._attrs["hayward_temperature"] = hayward_state
         self._attrs["hayward_unit_of_measure"] = hayward_unit_of_measure
 
-        self._unit = TEMP_FAHRENHEIT
+        self._unit = UnitOfTemperature.FAHRENHEIT
 
         return state
 
@@ -259,7 +258,7 @@ SENSOR_TYPES: dict[tuple[int, str], list[dict[str, Any]]] = {
             "kind": "air_temperature",
             "device_class": SensorDeviceClass.TEMPERATURE,
             "icon": None,
-            "unit": TEMP_FAHRENHEIT,
+            "unit": UnitOfTemperature.FAHRENHEIT,
             "guard_condition": [{}],
         },
     ],
@@ -270,7 +269,7 @@ SENSOR_TYPES: dict[tuple[int, str], list[dict[str, Any]]] = {
             "kind": "water_temperature",
             "device_class": SensorDeviceClass.TEMPERATURE,
             "icon": None,
-            "unit": TEMP_FAHRENHEIT,
+            "unit": UnitOfTemperature.FAHRENHEIT,
             "guard_condition": [{}],
         },
     ],
@@ -351,7 +350,7 @@ SENSOR_TYPES: dict[tuple[int, str], list[dict[str, Any]]] = {
             "kind": "csad_orp",
             "device_class": None,
             "icon": "mdi:gauge",
-            "unit": ELECTRIC_POTENTIAL_MILLIVOLT,
+            "unit": UnitOfElectricPotential.MILLIVOLT,
             "guard_condition": [
                 {"orp": ""},
             ],
diff --git a/homeassistant/components/ondilo_ico/sensor.py b/homeassistant/components/ondilo_ico/sensor.py
index b4c6e02879e..b6a3b25f3f2 100644
--- a/homeassistant/components/ondilo_ico/sensor.py
+++ b/homeassistant/components/ondilo_ico/sensor.py
@@ -15,9 +15,9 @@ from homeassistant.components.sensor import (
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import (
     CONCENTRATION_PARTS_PER_MILLION,
-    ELECTRIC_POTENTIAL_MILLIVOLT,
     PERCENTAGE,
-    TEMP_CELSIUS,
+    UnitOfElectricPotential,
+    UnitOfTemperature,
 )
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity import DeviceInfo
@@ -34,24 +34,21 @@ SENSOR_TYPES: tuple[SensorEntityDescription, ...] = (
     SensorEntityDescription(
         key="temperature",
         name="Temperature",
-        native_unit_of_measurement=TEMP_CELSIUS,
-        icon=None,
+        native_unit_of_measurement=UnitOfTemperature.CELSIUS,
         device_class=SensorDeviceClass.TEMPERATURE,
         state_class=SensorStateClass.MEASUREMENT,
     ),
     SensorEntityDescription(
         key="orp",
         name="Oxydo Reduction Potential",
-        native_unit_of_measurement=ELECTRIC_POTENTIAL_MILLIVOLT,
+        native_unit_of_measurement=UnitOfElectricPotential.MILLIVOLT,
         icon="mdi:pool",
-        device_class=None,
         state_class=SensorStateClass.MEASUREMENT,
     ),
     SensorEntityDescription(
         key="ph",
         name="pH",
         icon="mdi:pool",
-        device_class=None,
         state_class=SensorStateClass.MEASUREMENT,
     ),
     SensorEntityDescription(
@@ -59,14 +56,12 @@ SENSOR_TYPES: tuple[SensorEntityDescription, ...] = (
         name="TDS",
         native_unit_of_measurement=CONCENTRATION_PARTS_PER_MILLION,
         icon="mdi:pool",
-        device_class=None,
         state_class=SensorStateClass.MEASUREMENT,
     ),
     SensorEntityDescription(
         key="battery",
         name="Battery",
         native_unit_of_measurement=PERCENTAGE,
-        icon=None,
         device_class=SensorDeviceClass.BATTERY,
         state_class=SensorStateClass.MEASUREMENT,
     ),
@@ -74,7 +69,6 @@ SENSOR_TYPES: tuple[SensorEntityDescription, ...] = (
         key="rssi",
         name="RSSI",
         native_unit_of_measurement=PERCENTAGE,
-        icon=None,
         device_class=SensorDeviceClass.SIGNAL_STRENGTH,
         state_class=SensorStateClass.MEASUREMENT,
     ),
@@ -83,7 +77,6 @@ SENSOR_TYPES: tuple[SensorEntityDescription, ...] = (
         name="Salt",
         native_unit_of_measurement="mg/L",
         icon="mdi:pool",
-        device_class=None,
         state_class=SensorStateClass.MEASUREMENT,
     ),
 )
diff --git a/homeassistant/components/poolsense/sensor.py b/homeassistant/components/poolsense/sensor.py
index 250229867bf..f8f91620321 100644
--- a/homeassistant/components/poolsense/sensor.py
+++ b/homeassistant/components/poolsense/sensor.py
@@ -9,9 +9,9 @@ from homeassistant.components.sensor import (
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import (
     CONF_EMAIL,
-    ELECTRIC_POTENTIAL_MILLIVOLT,
     PERCENTAGE,
-    TEMP_CELSIUS,
+    UnitOfElectricPotential,
+    UnitOfTemperature,
 )
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
@@ -22,7 +22,7 @@ from .const import DOMAIN
 SENSOR_TYPES: tuple[SensorEntityDescription, ...] = (
     SensorEntityDescription(
         key="Chlorine",
-        native_unit_of_measurement=ELECTRIC_POTENTIAL_MILLIVOLT,
+        native_unit_of_measurement=UnitOfElectricPotential.MILLIVOLT,
         icon="mdi:pool",
         name="Chlorine",
     ),
@@ -39,7 +39,7 @@ SENSOR_TYPES: tuple[SensorEntityDescription, ...] = (
     ),
     SensorEntityDescription(
         key="Water Temp",
-        native_unit_of_measurement=TEMP_CELSIUS,
+        native_unit_of_measurement=UnitOfTemperature.CELSIUS,
         icon="mdi:coolant-temperature",
         name="Temperature",
         device_class=SensorDeviceClass.TEMPERATURE,
@@ -52,13 +52,13 @@ SENSOR_TYPES: tuple[SensorEntityDescription, ...] = (
     ),
     SensorEntityDescription(
         key="Chlorine High",
-        native_unit_of_measurement=ELECTRIC_POTENTIAL_MILLIVOLT,
+        native_unit_of_measurement=UnitOfElectricPotential.MILLIVOLT,
         icon="mdi:pool",
         name="Chlorine High",
     ),
     SensorEntityDescription(
         key="Chlorine Low",
-        native_unit_of_measurement=ELECTRIC_POTENTIAL_MILLIVOLT,
+        native_unit_of_measurement=UnitOfElectricPotential.MILLIVOLT,
         icon="mdi:pool",
         name="Chlorine Low",
     ),