diff --git a/homeassistant/components/netatmo/netatmo_entity_base.py b/homeassistant/components/netatmo/netatmo_entity_base.py
index 78352e486e016..12798c164f834 100644
--- a/homeassistant/components/netatmo/netatmo_entity_base.py
+++ b/homeassistant/components/netatmo/netatmo_entity_base.py
@@ -92,9 +92,11 @@ def async_update_callback(self) -> None:
     @property
     def device_info(self) -> DeviceInfo:
         """Return the device info for the sensor."""
-        manufacturer, model = DEVICE_DESCRIPTION_MAP[
-            getattr(NetatmoDeviceType, self._model)
-        ]
+        if "." in self._model:
+            netatmo_device = NetatmoDeviceType(self._model.partition(".")[2])
+        else:
+            netatmo_device = getattr(NetatmoDeviceType, self._model)
+        manufacturer, model = DEVICE_DESCRIPTION_MAP[netatmo_device]
         return DeviceInfo(
             configuration_url=self._config_url,
             identifiers={(DOMAIN, self._id)},
diff --git a/tests/components/netatmo/test_camera.py b/tests/components/netatmo/test_camera.py
index 76397988187b4..0ff55df6caf0d 100644
--- a/tests/components/netatmo/test_camera.py
+++ b/tests/components/netatmo/test_camera.py
@@ -350,7 +350,7 @@ async def test_service_set_camera_light_invalid_type(hass, config_entry, netatmo
     await hass.async_block_till_done()
 
     mock_set_state.assert_not_called()
-    assert excinfo.value.args == ("NACamera <Hall> does not have a floodlight",)
+    assert "NACamera <Hall> does not have a floodlight" in excinfo.value.args[0]
 
 
 async def test_camera_reconnect_webhook(hass, config_entry):