diff --git a/homeassistant/components/rflink/sensor.py b/homeassistant/components/rflink/sensor.py
index baccd47ebb3..b96e03e7eb4 100644
--- a/homeassistant/components/rflink/sensor.py
+++ b/homeassistant/components/rflink/sensor.py
@@ -20,14 +20,14 @@ from homeassistant.const import (
     CONF_SENSOR_TYPE,
     CONF_UNIT_OF_MEASUREMENT,
     DEGREE,
-    ELECTRIC_CURRENT_AMPERE,
-    ELECTRIC_POTENTIAL_VOLT,
     LIGHT_LUX,
     PERCENTAGE,
-    PRECIPITATION_MILLIMETERS,
     UV_INDEX,
+    UnitOfElectricCurrent,
+    UnitOfElectricPotential,
     UnitOfLength,
     UnitOfPower,
+    UnitOfPrecipitationDepth,
     UnitOfPressure,
     UnitOfSpeed,
     UnitOfTemperature,
@@ -91,21 +91,21 @@ SENSOR_TYPES = (
         name="Current phase 1",
         device_class=SensorDeviceClass.CURRENT,
         state_class=SensorStateClass.MEASUREMENT,
-        native_unit_of_measurement=ELECTRIC_CURRENT_AMPERE,
+        native_unit_of_measurement=UnitOfElectricCurrent.AMPERE,
     ),
     SensorEntityDescription(
         key="current_phase_2",
         name="Current phase 2",
         device_class=SensorDeviceClass.CURRENT,
         state_class=SensorStateClass.MEASUREMENT,
-        native_unit_of_measurement=ELECTRIC_CURRENT_AMPERE,
+        native_unit_of_measurement=UnitOfElectricCurrent.AMPERE,
     ),
     SensorEntityDescription(
         key="current_phase_3",
         name="Current phase 3",
         device_class=SensorDeviceClass.CURRENT,
         state_class=SensorStateClass.MEASUREMENT,
-        native_unit_of_measurement=ELECTRIC_CURRENT_AMPERE,
+        native_unit_of_measurement=UnitOfElectricCurrent.AMPERE,
     ),
     SensorEntityDescription(
         key="distance",
@@ -189,7 +189,7 @@ SENSOR_TYPES = (
         name="Total rain",
         device_class=SensorDeviceClass.PRECIPITATION,
         state_class=SensorStateClass.TOTAL_INCREASING,
-        native_unit_of_measurement=PRECIPITATION_MILLIMETERS,
+        native_unit_of_measurement=UnitOfPrecipitationDepth.MILLIMETERS,
     ),
     SensorEntityDescription(
         key="uv_intensity",
@@ -208,7 +208,7 @@ SENSOR_TYPES = (
         name="Voltage",
         device_class=SensorDeviceClass.VOLTAGE,
         state_class=SensorStateClass.MEASUREMENT,
-        native_unit_of_measurement=ELECTRIC_POTENTIAL_VOLT,
+        native_unit_of_measurement=UnitOfElectricPotential.VOLT,
     ),
     SensorEntityDescription(
         key="watt",