diff --git a/homeassistant/components/duco/sensor.py b/homeassistant/components/duco/sensor.py
index dcc9d63d6e52..35159ce63e26 100644
--- a/homeassistant/components/duco/sensor.py
+++ b/homeassistant/components/duco/sensor.py
@@ -95,7 +95,12 @@ SENSOR_DESCRIPTIONS: tuple[DucoSensorEntityDescription, ...] = (
         state_class=SensorStateClass.MEASUREMENT,
         native_unit_of_measurement=CONCENTRATION_PARTS_PER_MILLION,
         value_fn=lambda node: node.sensor.co2 if node.sensor else None,
-        node_types=(NodeType.UCCO2, NodeType.VLVCO2, NodeType.VLVCO2RH),
+        node_types=(
+            NodeType.BSCO2,
+            NodeType.UCCO2,
+            NodeType.VLVCO2,
+            NodeType.VLVCO2RH,
+        ),
     ),
     DucoSensorEntityDescription(
         key="iaq_co2",
@@ -104,7 +109,12 @@ SENSOR_DESCRIPTIONS: tuple[DucoSensorEntityDescription, ...] = (
         state_class=SensorStateClass.MEASUREMENT,
         entity_registry_enabled_default=False,
         value_fn=lambda node: node.sensor.iaq_co2 if node.sensor else None,
-        node_types=(NodeType.UCCO2, NodeType.VLVCO2, NodeType.VLVCO2RH),
+        node_types=(
+            NodeType.BSCO2,
+            NodeType.UCCO2,
+            NodeType.VLVCO2,
+            NodeType.VLVCO2RH,
+        ),
     ),
     DucoSensorEntityDescription(
         key="humidity",
diff --git a/tests/components/duco/fixtures/dynamic_sensor_nodes.json b/tests/components/duco/fixtures/dynamic_sensor_nodes.json
index bdad2a06363c..f51afc483b94 100644
--- a/tests/components/duco/fixtures/dynamic_sensor_nodes.json
+++ b/tests/components/duco/fixtures/dynamic_sensor_nodes.json
@@ -50,5 +50,31 @@
       "iaq_rh": null,
       "temp": 20.5
     }
+  },
+  {
+    "node_id": 202,
+    "general": {
+      "node_type": "BSCO2",
+      "sub_type": 0,
+      "network_type": "VIRT",
+      "parent": 1,
+      "asso": 1,
+      "name": "New box co2 sensor",
+      "identify": 0
+    },
+    "ventilation": {
+      "state": "AUTO",
+      "time_state_remain": 0,
+      "time_state_end": 0,
+      "mode": "-",
+      "flow_lvl_tgt": null
+    },
+    "sensor": {
+      "co2": 421,
+      "iaq_co2": 100,
+      "rh": null,
+      "iaq_rh": null,
+      "temp": null
+    }
   }
 ]
diff --git a/tests/components/duco/test_sensor.py b/tests/components/duco/test_sensor.py
index 2617033421c7..55b591c12c99 100644
--- a/tests/components/duco/test_sensor.py
+++ b/tests/components/duco/test_sensor.py
@@ -140,23 +140,37 @@ async def test_lan_info_failures_keep_node_entities_available(
 
 
 @pytest.mark.parametrize(
-    ("node_id", "expected_entity_id", "expected_state"),
+    (
+        "node_id",
+        "expected_entity_id",
+        "expected_state",
+        "expected_disabled_entity_id",
+    ),
     [
         (
             200,
             "sensor.new_rh_sensor_humidity",
             "55.0",
+            "sensor.new_rh_sensor_humidity_air_quality_index",
         ),
         (
             201,
             "sensor.new_valve_carbon_dioxide",
             "575",
+            "sensor.new_valve_co2_air_quality_index",
+        ),
+        (
+            202,
+            "sensor.new_box_co2_sensor_carbon_dioxide",
+            "421",
+            "sensor.new_box_co2_sensor_co2_air_quality_index",
         ),
     ],
 )
 @pytest.mark.usefixtures("init_integration")
 async def test_new_node_added_dynamically(
     hass: HomeAssistant,
+    entity_registry: er.EntityRegistry,
     mock_duco_client: AsyncMock,
     mock_sensor_nodes: list[Node],
     dynamic_sensor_nodes: dict[int, Node],
@@ -164,6 +178,7 @@ async def test_new_node_added_dynamically(
     node_id: int,
     expected_entity_id: str,
     expected_state: str,
+    expected_disabled_entity_id: str,
 ) -> None:
     """Test a new node appearing in coordinator data creates entities automatically."""
     assert hass.states.get(expected_entity_id) is None
@@ -179,6 +194,10 @@ async def test_new_node_added_dynamically(
     assert state is not None
     assert state.state == expected_state
 
+    entry = entity_registry.async_get(expected_disabled_entity_id)
+    assert entry is not None
+    assert entry.disabled_by == er.RegistryEntryDisabler.INTEGRATION
+
 
 @pytest.mark.usefixtures("init_integration")
 async def test_deregistered_node_removes_device(