diff --git a/homeassistant/components/sensor/__init__.py b/homeassistant/components/sensor/__init__.py
index 9965fae9d59..5fca119d5b5 100644
--- a/homeassistant/components/sensor/__init__.py
+++ b/homeassistant/components/sensor/__init__.py
@@ -198,6 +198,8 @@ CACHED_PROPERTIES_WITH_ATTR_ = {
     "suggested_unit_of_measurement",
 }
 
+TEMPERATURE_UNITS = {UnitOfTemperature.CELSIUS, UnitOfTemperature.FAHRENHEIT}
+
 
 class SensorEntity(Entity, cached_properties=CACHED_PROPERTIES_WITH_ATTR_):
     """Base class for sensor entities."""
@@ -509,8 +511,7 @@ class SensorEntity(Entity, cached_properties=CACHED_PROPERTIES_WITH_ATTR_):
         native_unit_of_measurement = self.native_unit_of_measurement
 
         if (
-            native_unit_of_measurement
-            in {UnitOfTemperature.CELSIUS, UnitOfTemperature.FAHRENHEIT}
+            native_unit_of_measurement in TEMPERATURE_UNITS
             and self.device_class is SensorDeviceClass.TEMPERATURE
         ):
             return self.hass.config.units.temperature_unit