diff --git a/homeassistant/components/flo/binary_sensor.py b/homeassistant/components/flo/binary_sensor.py
index 88675e571e7..2118635d9ad 100644
--- a/homeassistant/components/flo/binary_sensor.py
+++ b/homeassistant/components/flo/binary_sensor.py
@@ -2,7 +2,7 @@
 from __future__ import annotations
 
 from homeassistant.components.binary_sensor import (
-    DEVICE_CLASS_PROBLEM,
+    BinarySensorDeviceClass,
     BinarySensorEntity,
 )
 
@@ -37,7 +37,7 @@ async def async_setup_entry(hass, config_entry, async_add_entities):
 class FloPendingAlertsBinarySensor(FloEntity, BinarySensorEntity):
     """Binary sensor that reports on if there are any pending system alerts."""
 
-    _attr_device_class = DEVICE_CLASS_PROBLEM
+    _attr_device_class = BinarySensorDeviceClass.PROBLEM
 
     def __init__(self, device):
         """Initialize the pending alerts binary sensor."""
@@ -63,7 +63,7 @@ class FloPendingAlertsBinarySensor(FloEntity, BinarySensorEntity):
 class FloWaterDetectedBinarySensor(FloEntity, BinarySensorEntity):
     """Binary sensor that reports if water is detected (for leak detectors)."""
 
-    _attr_device_class = DEVICE_CLASS_PROBLEM
+    _attr_device_class = BinarySensorDeviceClass.PROBLEM
 
     def __init__(self, device):
         """Initialize the pending alerts binary sensor."""
diff --git a/homeassistant/components/flo/sensor.py b/homeassistant/components/flo/sensor.py
index b64ed9ee3e4..c98f99f74ce 100644
--- a/homeassistant/components/flo/sensor.py
+++ b/homeassistant/components/flo/sensor.py
@@ -1,12 +1,8 @@
 """Support for Flo Water Monitor sensors."""
 from __future__ import annotations
 
-from homeassistant.components.sensor import SensorEntity
+from homeassistant.components.sensor import SensorDeviceClass, SensorEntity
 from homeassistant.const import (
-    DEVICE_CLASS_BATTERY,
-    DEVICE_CLASS_HUMIDITY,
-    DEVICE_CLASS_PRESSURE,
-    DEVICE_CLASS_TEMPERATURE,
     PERCENTAGE,
     PRESSURE_PSI,
     TEMP_FAHRENHEIT,
@@ -114,7 +110,7 @@ class FloCurrentFlowRateSensor(FloEntity, SensorEntity):
 class FloTemperatureSensor(FloEntity, SensorEntity):
     """Monitors the temperature."""
 
-    _attr_device_class = DEVICE_CLASS_TEMPERATURE
+    _attr_device_class = SensorDeviceClass.TEMPERATURE
     _attr_native_unit_of_measurement = TEMP_FAHRENHEIT
 
     def __init__(self, name, device):
@@ -133,7 +129,7 @@ class FloTemperatureSensor(FloEntity, SensorEntity):
 class FloHumiditySensor(FloEntity, SensorEntity):
     """Monitors the humidity."""
 
-    _attr_device_class = DEVICE_CLASS_HUMIDITY
+    _attr_device_class = SensorDeviceClass.HUMIDITY
     _attr_native_unit_of_measurement = PERCENTAGE
 
     def __init__(self, device):
@@ -152,7 +148,7 @@ class FloHumiditySensor(FloEntity, SensorEntity):
 class FloPressureSensor(FloEntity, SensorEntity):
     """Monitors the water pressure."""
 
-    _attr_device_class = DEVICE_CLASS_PRESSURE
+    _attr_device_class = SensorDeviceClass.PRESSURE
     _attr_native_unit_of_measurement = PRESSURE_PSI
 
     def __init__(self, device):
@@ -171,7 +167,7 @@ class FloPressureSensor(FloEntity, SensorEntity):
 class FloBatterySensor(FloEntity, SensorEntity):
     """Monitors the battery level for battery-powered leak detectors."""
 
-    _attr_device_class = DEVICE_CLASS_BATTERY
+    _attr_device_class = SensorDeviceClass.BATTERY
     _attr_native_unit_of_measurement = PERCENTAGE
 
     def __init__(self, device):