diff --git a/homeassistant/components/bloomsky/sensor.py b/homeassistant/components/bloomsky/sensor.py
index 77978e6324d..6cefcdb3346 100644
--- a/homeassistant/components/bloomsky/sensor.py
+++ b/homeassistant/components/bloomsky/sensor.py
@@ -11,12 +11,10 @@ from homeassistant.components.sensor import (
 from homeassistant.const import (
     AREA_SQUARE_METERS,
     CONF_MONITORED_CONDITIONS,
-    ELECTRIC_POTENTIAL_MILLIVOLT,
     PERCENTAGE,
-    PRESSURE_INHG,
-    PRESSURE_MBAR,
-    TEMP_CELSIUS,
-    TEMP_FAHRENHEIT,
+    UnitOfElectricPotential,
+    UnitOfPressure,
+    UnitOfTemperature,
 )
 from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
@@ -37,25 +35,28 @@ SENSOR_TYPES = [
 
 # Sensor units - these do not currently align with the API documentation
 SENSOR_UNITS_IMPERIAL = {
-    "Temperature": TEMP_FAHRENHEIT,
+    "Temperature": UnitOfTemperature.FAHRENHEIT,
     "Humidity": PERCENTAGE,
-    "Pressure": PRESSURE_INHG,
+    "Pressure": UnitOfPressure.INHG,
     "Luminance": f"cd/{AREA_SQUARE_METERS}",
-    "Voltage": ELECTRIC_POTENTIAL_MILLIVOLT,
+    "Voltage": UnitOfElectricPotential.MILLIVOLT,
 }
 
 # Metric units
 SENSOR_UNITS_METRIC = {
-    "Temperature": TEMP_CELSIUS,
+    "Temperature": UnitOfTemperature.CELSIUS,
     "Humidity": PERCENTAGE,
-    "Pressure": PRESSURE_MBAR,
+    "Pressure": UnitOfPressure.MBAR,
     "Luminance": f"cd/{AREA_SQUARE_METERS}",
-    "Voltage": ELECTRIC_POTENTIAL_MILLIVOLT,
+    "Voltage": UnitOfElectricPotential.MILLIVOLT,
 }
 
 # Device class
 SENSOR_DEVICE_CLASS = {
     "Temperature": SensorDeviceClass.TEMPERATURE,
+    "Humidity": SensorDeviceClass.HUMIDITY,
+    "Pressure": SensorDeviceClass.PRESSURE,
+    "Voltage": SensorDeviceClass.VOLTAGE,
 }
 
 # Which sensors to format numerically
@@ -108,7 +109,7 @@ class BloomSkySensor(SensorEntity):
             )
 
     @property
-    def device_class(self):
+    def device_class(self) -> SensorDeviceClass | None:
         """Return the class of this device, from component DEVICE_CLASSES."""
         return SENSOR_DEVICE_CLASS.get(self._sensor_name)