diff --git a/custom_components/mikrotik_router/binary_sensor.py b/custom_components/mikrotik_router/binary_sensor.py
index ba1a363..18dc00b 100644
--- a/custom_components/mikrotik_router/binary_sensor.py
+++ b/custom_components/mikrotik_router/binary_sensor.py
@@ -261,6 +261,14 @@ class MikrotikControllerBinarySensor(BinarySensorEntity):
         """Return the state attributes."""
         return self._attrs
 
+    @property
+    def device_class(self) -> Optional[str]:
+        """Return the device class."""
+        if ATTR_DEVICE_CLASS in self._type:
+            return self._type[ATTR_DEVICE_CLASS]
+
+        return None
+
     @property
     def unique_id(self) -> str:
         """Return a unique id for this entity."""